(Try this on 700R4/4L60E 3-4 accumulator, makes no significant difference and you'll wonder why it has an accumulator) Sample of GM 700R4 1-2 accumulator. Note in the sample left diagram shows first gear with 1 -2 accumulator piston held down in bottom of bore by acc. spring and accumulator oil pressure (green Free Shipping on All Transmission Parts & Rebuild Kits Orders Over $35. Multiple warehouse locations in Las Vegas and the East Coast gets you transmission parts fast I have a 2001 s10 blazer 2wd 4.3l with 4l60e I've ordered a sonnax pinless 1-2 accumulator piston and a firmer 1-2 spring (77704s I think) Is the proper setup single spring towards separator plate, piston (cup facing spring) then accumulator housing? This should be setup for a firm shift.. 4L60E Harsh 1-2 Shift. The 4L60E transmission platform has been in service from 1993-2015, that's 22 years. It amazes me when a transmission that has been around for this long can throw a new twist on a common problem and blindside you. Let us have a look at the systems and potential problems in a 4L60E that can cause a harsh 1-2 shift Re: 1-2 shift accumulator replacement. Jan 06 2013, 12:02am. This is very easy to do for even your novice do it yourselfer. Remove pan. Be cafeful and do not pry pan. You will have to remove shifter cable out of bracket and bend shifter arm brack towards driveshaft a littke to make life alot easier in removing the pan
1-2 Accumulator Kit for 4L60E. Mar 30 2019, 3:46am. Hi guys, newbie poster but I've been searching and reading your posts for years! I bought an 03 Sierra 1500, 5.3L and I've been working out some of the bugs since it's been neglected. The shift from first to second was drawn out and I read it could be due to the 1-2 accumulator piston since it. These things can destroy even the best rebuild, so it's very important to check these things, or better yet just throw them out. At less than $5 each, you ca.. 35371A 4L60E 4L65E Transmission 1-2 Accumulator spring, orange tapered (Conicol Shaped) 1.485 outside diameter X 1.288 tall X .160 coil thickness. Competitors Price $2.19. Your Cost $1.95. You save $0.24! (Out of Stock) 35371B 700R4 4L60E Transmission Forward & 1-2 Accumulator Spring, red color The obvious issue here is the 1-2 shift. 1. I would look to make sure that the 1-2 feed hole is drilled .082-.093. 2. Check the 1-2 accumulator valve and sleeve and make sure it is not installed upside down. This will also produce a harsh 3-4 shift. 3. Return the 1-2 accumulator to the factory setup This part is New and fits your 4L60E. Housing is an important part of 4L60E transmission. On go4trans.com you will find best deals from worldwide suppliers of New, Aftermarket parts for 4L60E and other automatic transmissions. Information about basic repairs for 4L60E can be read here
Use none or at most one washer in the 2nd gear accumulator for the smoothest 1-2 part throttle shift. 1-2 will shift hard enough at full throttle that the tires will likely bark, but without transmission banging (shifting very hard). With a 10 or 9.5 torque converter, change 2nd gear to .096, 3rd & 4th gear to .155 - 1-2 accumulator, Install spring 74926 into housing. If you have a small OE inner spring, install that too. Use pinless piston with flat part of piston towards separator plate. - Swap original accumulator valve and spring from original VB into reman VB. - Install line booster kit 4L60E-LB1 . Add to wish list. Description. 4L60E, Kit, 1-2 & 3-4 Accumulator Piston (.310 Pin Dia) (1982-Up) (8635909) Reviews. Be the first to write review. Customers who bought this also bought About the 4L60-E Transmission. Produced from 1993 to 2014 for more than 11 million vehicles, the 4L60-E is one of the most popular 4-speed, RWD transmissions ever made. It's found in more than 60 vehicle models, most commonly trucks/SUVs like the Chevy Silverado, Trailblazer and Suburban, the GMC Sierra, Yukon and Envoy, as well as performance.
Symptoms Of Bad 4l60e Shift Solenoids. When assessing a shift solenoid issue, there can be a number of things to consider. While 4l60e shift solenoids do go bad, it's not a common occurrence. Common issues that may cause you to believe the 1-2 or 2-3 shift solenoids are failing are a bad accumulator, stuck shift valve, just to name a few Piston, 1-2 Accumulator, 0.230 Pin Dia, TH700-R4 4L60E 4L65E 4L70E. 868442 4L60E transmission has problems shifting into 1st or 2nd gear? Maybe your shift from 1st to 2nd is really sluggish? Maybe your Accumulator is the issue.Donat.. In addition, the piston can get cocked and gall the accumulator bore due to the pin bore wear or the spring bottoming out. To prevent these conditions in the 1-2 or 3-4 accumulator bores, Sonnax offers pinless accumulator piston kit 77998-03K. Pinless design eliminates the possibility of pin bore leakage and the additional length stabilizes the. With any 4L60E rebuild we always recommend replacing the stock accumulator pistons as they tend to break often and can ruin your transmission. We suggest replacing the forward accumulator piston (part number SNX-77987-01K) and the 1-2 accumulator piston (part number SNX-77998-03K)
4l60e Valve Body Bolt Diagram. Hardware torque specifications for GM's 4L60E automatic transmission. Get great Forward Accumulator Cover to Valve Body Bolt, 3. M6. x 11 N-m. Then i put the box with all the valvebody parts on the workbench, and . of the check ball locations and the bolt pattern for the valve body bolts. 4L60E Valve Body Diagram. Location Price; 4L60 4L60E 4L65E Sonnax Accumulator Pistions 1-2 / 3-4 Chevy GM pinles 77998-03K 4L60E NEW HD 1-2 ACCUMULATOR PISTON REPLACES PLASTIC or NO LEG 4L65E 4L70E .230 Shift Rite Transmissions: New 4L60E/ 4L65E: IL, Kankakee $ 9.00: CONTACT SELLER. 4L60E NEW HD 3-4 ACCUMULATOR PISTON UPGRADE 4L65E 4L70E .310 TRANSMISSION. SPRING, 700R4 / 4L60E 1-2 or 3-4 ACCUMULATOR (VIOLET) This is the firmest OEM type replacement spring for use in the 1-2 or 3-4 accumulator of the 4L60 and 4L60-E transmissions. This spring has identical performance specifications to the purple OEM accumulator spring. This spring uses high strength spring wire to insure lasting spring life and. Remove the 1-2 accumulator valve sleeve (372). Remove the 1-2 accumulator valve (371) and the 1-2 accumulator valve spring (370). Install the new 1-2 accumulator valve kit, GM P/N 24255821. Install the valve body. Refer to Valve Body and Pressure Switch Installation in SI. That's not the whole thing but you get the idea 4L60E transmission 1-2 accumulator pistons 4L60E transmission super servo 4L60E transmission rebuild kits, band
Shop Automatic Transmission Accumulator Bodies at Summit Racing. Summit Racing SpeedCard - Open a World of Possibilities - Apply Today! 1-2 accumulator. Purchased for my 2009 Silverado with a 4L60E Trans. This was an exact match 4L60E, 4L65E, 4L70E. 1-2 aluminum piston accumulator replace the 1-2 plastic piston. Automatic transmission often has a worn accumulator piston pin hole or. a broken plastic accumulator piston. 1-2 ACCUMULATOR ASSEMBLY INCLU DES The TransGo 4L60E SHIFT KIT® Valve Body Repair Kit fits 1993 to 2015 General Motors vehicles equipped with the 4L60E, 4L65E and 4L70E automatic transmission. Common complaints on this transmission are TCC slip or shudder, code P1870 or P0894, harsh 1-2 shift, double bump shifts, 2-3 flare up, burnt 3-4 clutch plates as well as inconsistent. In 200-4R applications, this kit can only be used in the 3-4 accumulator location. In GM 200-4R, 4L60 and 4L60-series units it is common to have poor shift quality, burnt bands or clutches due to accumulator piston wear STEP 8 Remove the forward accumulator cover from the valve body. (See FIGURE 5 for location of forward accumulator cover and spring location.) Replace forward accumulator spring with white spring supplied in kit. Reassemble forward accumulator lineup and reinstall cover. Tighten bolts to 8 ft.-lbs. STEP 9 Remove 1-2 accumulator piston and.
listen up.the best shift quality and elimination of coast down bang is to use the piston installed in the housing and the spring against the seperator plate.if you have a 4l60e then install the white 700 accumulator spring in place of the 4l60e stuff.the double spring will cause a bang on the 1/2 shift when inverted.700r4 and 4l60e :install the piston in the housing first,then the white. 4L60E/4L65E Harsh 1-2 Upshift 01-06 GM Passenger Cars and Light Duty Trucks, 03-06 Hummer H2, 06 Hummer H3,05-06 Saab 9-7X January, 2006 Chips/Sediment/Debris Contamination found in the valve body, 1-2 accumulator valve (371) bore, may cause the 1-2 accumulator valve to stick or hang up. A cracked 1-2 accumulator piston (56) that is allowin 4L60E/4L65E 4L60E/4L65E 42RE & 45RFE July AX4N, 4F50N & AX4S 5R55N/W/S 4L80E 450-43LE Pin Location in Case Rebuilding Tips Wrong gear start / wrong shift pattern Accumulators - 1-2 The 1-2 accumulator reduces shift shock when shifting from first to second gear. The accumulator piston is nor Tools needed: 8, 10, 13 mm sockets and ratchet Good set of picks ¼ torque wrench (needs to have a range between 40 and 96 inch-lbs Any transmission parts you plan on replacing (accumulator pistons, separator plate, separator plate gaskets, shift kit, etc.) I listed the parts that I used over.. With any 4L60E rebuild we always recommend replacing the stock accumulator pistons as they tend to break often and can ruin your transmission. We suggest replacing the forward accumulator piston (part number SNX-77987-01K) and the 1-2 accumulator piston (part number SNX-77998-03K)
Re: 4L60E Hard Shifts 11-14-04 02:15 AM - Post# 552072 In response to kingb36 Like Richard said, get it scanned and see if any codes come up. Since you are feeling harsh shifts other than just the 1-2 it sounds like a code has been set and the computer has commanded the EPC (Electronic Pressure Control) solenoid to full line pressure For what it is worth, I helped a friend out with his 4l60E, he accidentally mixed up the position of the 1-2 and 3-4 springs one is thicker and heaver the other is always (almost always, a particular color) after the transmission was installed, it would not engage the input drum 3-4 clutch pack, because the incorrect spring had been installed. • 1-2 Accumulator Inner Spring • 1-2 Accumulator Outer Spring • 1-2 Accumulator Waved Spring • Accumulator Housing Spacer The parts listed here may be protected by one of these patent numbers: 6,619,323 & 6,899,211. NOTE: For more radical applications and even greater levels of performance, com-bine the Performance Pack with the Son-nax. 4L60E ACCUMULATOR PISTON, 1-2, 0.230″ PIN DIA, 1993-4L60E 1-2 Stock Accumulator Piston. The center hole is bad about wearing out and loosing pressure on high mileage units. The center hole is .230″. (tak es 1 700R4 700 4L60 4L60E New Updated Aluminum 1-2 3-4 Accumulator Kit .310 Pin Type. Brand New. C $17.46. Top Rated Seller. Top Rated Seller. Was: Previous Price. C $18.38 5% off. From United States
4L60E 1-2 Accumulator UPGRADE Piston OE GM 1-2 Accumulator Housing Assembly 97UP. Shipped with USPS Priority Mail. Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary. The 4L60E transmission weighs 146 pounds dry, and 162 wet. It requires 8.4 quarts (9.64″ torque converter) or 11.4 quarts (11.81″ torque converter) of transmission fluid, Top 30 Common 4L60E Transmission Problems and Repair. Below is a list of common transmission problems with the GM 4L60E Transmission and possible solutions to repair A more serious cause of 1-2 shift failure on the 4L60E is a leak in the 2nd gear apply circuit (servo assembly or 1-2 accumulator). You can test for this by using an external pressure gauge. If you see a big drop in pressure when the PCM commands 2nd gear, there is a leak
None of the '93 -'97 4L60E's are directly interchangeable, except '93 and '94 and '96 and '97!!! Here's a list of yearly differences that will show you why. Yes, some years will fit in others and may not even throw a code, but there will be an issue in the long run. The big issues become forced 3-2 downshifts, and converter lock up issues and burnt lock up clutches . Oct1, 2007. #1. i took a tranny to my son to repair the reverse sun shell. he also removed the valve bodyto inspect the plate and other components. counted 7 balls loose and one captured in the case. i got the ball location chart from transgo's website and it shows 7 loose balls. he went to put it back together after lunch and now there. Part No. 77998-03K. Pinless Accumulator Piston Aluminum. D-Ring Viton®. Seal PTFE. Balls (2) Steel. In 200-4R applications, this kit can only be used in the 3-4 accumulator location. In GM 200-4R, 4L60 and 4L60-series units it is common to have poor shift quality, burnt bands or clutches due to accumulator piston wear
.Designed for longitudinal engine configurations, the series includes 4 forward gears and 1 reverse gear. The 4L60E is the electronically commanded evolution of the Turbo-Hydramatic 700R4, originally produced in 1982.. The 4L60E and 4L65E are built at Toledo Transmission in Toledo, Ohio and have also been. 4L60E, 4L65E, 4L70E Sonnax Pinless Accumulator Piston Kit FWD (1-2 & 3-4) Brand New. 4.5 out of 5 stars. 4 product ratings. - 4L60E, 4L65E, 4L70E Sonnax Pinless Accumulator Piston Kit FWD (1-2 & 3-4) C $44.89. Top Rated Seller 4L60E, 700-R4 Cover [U74929] - 4L60E, 700-R4 Cover, 1-2 Accumulator, (1982-1993) (8683543) (Used
Accumulator Piston, Aluminum, 1-2 Piston, .236 in. Diameter Hole, No Legs, GM, 4L60E, Each See More Specifications | Check the Fit TransGo Performance 4L65-2ACM - TransGo Automatic Transmission Accumulator Piston 4L60E 1-2 SHIFT ACCUMULATOR SPRING BY SONNAX. 4L60E 1-2 SHIFT ACCUMULATOR SPRING BY SONNAX. Skip to main content. Shop by category. Shop by category Contact the seller- opens in a new window or tab and request postage to your location. Postage cost can't be calculated. Please enter a valid postcode
52- piston, 3-4 accumulator 53- ring, oil seal (3-4 accumulator piston) 54- spring, 3-4 accumulator 55- ball, .25 diameter 56- plate, valve body spacer 59- spring, 1-2 accumulator 60- ring, oil seal (1-2 accumulator piston) 61- piston, 1-2 accumulator 62- cover & piston assembly, 1-2 accumulator 63- bolt, accumulator cover 64- link, throttle. Sonnax enhanced performance accumulator spring 77704S provides firmer 1-2 shifts for the enthusiast that appreciates quick, positive shift feel in GM 200-4R, 4L60 and 4L60-E series units. The Sonnax spring design provides performance shift feel, but does not reduce accumulator piston travel Spring, Accumulator, 700R4, 4L60E, 1-2 / 3-4, GM, 93-UP. 700R4 performance 1-2 / 3-4 accumulator spring. Typically the OEM 1-2 accumulator spring is too weak for high performance rebuilds. This enhanced performance spring provides a firmer 1-2 or 3-4 shift. (White) Product Reviews 700R4 4L60E 4L65E 4L70E 2004R Sonnax Pinless Accumulator Piston Kit Fits All Years. Sonnax Updated Pinless Accumulator Piston Kit. In 4L60 & 4L60-E units it is common to have poor shift quality, burned bands or clutches due to accumulator piston wear
.7L 5.0L 4.3L. $ 1,549.00. Before any upgrades, addons, and/or core charges. Our Process: All of our transmissions are fully remanufactured and are held to the highest and strictest industry standards 700R4 1-2 & 3-4 Accumulator Spring (Pink) (82-93) A 700-R4 (Pink) 1-2 and/or 3-4 accumulator spring. Will fit years from 1982 - 1993. This spring will provide a harder/ more performance shift than stock. Monster Transmission provides transmission parts for all transmission year, make, and models. Price It also helps the SST remanufactured 4L60E transmission to last a lot longer than a factory spec 4L60E transmission. 2) Faulty 1-2 Accumulator If your Chevrolet Trailblazer transmission has a a pronounced shudder at low speeds, delayed gear engagement, or a noticeably harsh 1-2 shift, then you may have a bad 4L60E 1-2 accumulator
1-2 Accumulator Disassemble Blow air into the 1-2 accumulator housing (57) to remove the 1-2 accumulator piston (56). Remove the 1-2 inner (104) and outer (54) accumulator springs. Top of Form. Bottom of Form. Bottom of Form. 1-2 Accumulator Assemble Inspect the 1-2 accumulator piston (56) for the following conditions: Porosity . Cracks . Scorin Location: Texas 383, RHS Pro Torker heads, Hooker LT's, 4l60e, 0411, EFI Live v2, Marine intake. 4l60e tcc valve. Quote; Don't get too crazy with the shims on the 1-2 accumulator with a stock converter though. It's easy to make the 1-2 bang with a low stall speed converter. Change out the separator plate to the HD TransGo plate (your. Location Mansfield, PA Posts 22,146 Black & Blue '02 WS.6 / '07 Suburban. I read through that, hard to follow, but I'm not sure if I caught anything about the 1-2 accumulator. Usually when the 4L60 starts having 1-2 shift problems, especially shudder, the accumulator is worn. 1-2, 4l60e, first gear, harsh, shift. View Tag Cloud.
3rd accumulator retainer and ball assembly not seating. 2-4 Servo Assembly (13-28) need a diagram/picture of the location of the pressure control solenoid on chev silverado 2000 Z71 5.3 v8 I am exchanging a 4L60E transmission in my 1/2 ton 94 silverado with a 4L60 from a 3/4 ton 89 silverado Important: Make a note of the color and location of the 1-2 and 2-3 accumulator springs for correct reassembly (See Fig's. 7-10). Remove all old gasket material from separator plate, valve body and case surfaces. 6. Remove pin from 3-4 accumulator piston in case. Remove 3-4 accumulator piston from case bore There's a problem only on the 1-2 shift and 1-2 shift is delayed and harsh, may not shift into Over Drive. In order to solve the problem they suggest to replace the Throttle Position Sensor (TPS). and also to check for a 1-2 accumulator piston cracked or stuck cocked in the bore
289. Location. MN. Mar 26, 2021. #6. Hard 1-2 shifts on a 4L60E is more likely than not a 1-2 accumulator piston or pin that is worn, cracked, hanging up, or the springs have broken. They come with plastic pistons that often get worn or crack. A decent rebuilder would have upgraded to an aluminum piston The 4L60E transmission is the direct descendent of the 700R4, and as such already had over a decade of refinement put into it before it ever even made it into production. This means that even the early ones were pretty good from day one of their production life. While there have been many case changes and internal changes throughout the years
4L60E Transmission Only Shifts Manually. If the transmission only shifts manually (and therefore doesn't shift automatically ), there is probably a problem in either the PCM or one of the related sensors sending information to the PCM. This could be the VSS (vehicle speed sensor) or the TPS (throttle position sensor) T ransmission temperature sensor under approximately 100 ohms inhibits 4th, and brings TCC on after 1-2 shift. ©2010 Sonnax Industries, Inc. SC-4L60E-IN 04-09-10. 800/843-2600 • 802/463-9722 • fax: 802/463-4059 • www .sonnax.com Page 11 The accumulator itself cushions the 1/2. Shift. So installing a blocker under the piston so the piston is always in the upper position will firm the 1/2 shift. Location: los angeles Local Time: 3:11 PM. If you have the Transgo TF-shift kit give Dave a call at the number on the instructions (or look it up in El Monte Ca).
2001 Trans Am 228R cam with bolt ons. Transmission is a level two 4l60e from Performabuilt with a 3400 stall yank converter. The trans tune is stock per their request since the mechanically increase line pressure in the trans. I was curious how I could reduce that pressure from 1-2, other gears are fine lathe cut seal 1-2 / 3-4 accumulator 81-up (200-4r 3-4 only), 700-r4, 4l60e, 4t60e, 4t65e: d type rubber seal. (700R4 82-86 TEFLON USE 32324T) image #191, 352 Item #54352 Overhaul Kit 4L60E with Pump to Case Lathe Cut Seal. 93-03. 1. Kit. 37008K. Overhaul Kit 4L60E, 4L65E, 4L70E with Pump to Case Wedge type Seal. 04-09. 1. Kit
Location: Republic of Texas. The 1-2 shift on a 700 can get really brutal, really quick when you do all the improvements to make it live. Better band, bigger servo, increased pressure all contribute to the harsh 1-2. The problem is that most guys drill the 1-2 feed hole too big. Some block the 1-2 accumulator 4L60E / 4L65E Updates; Oversize PR valves utilized to restore hydraulic integrity: TCC control valve, TCC regulator valve, and Actuator Feed Valve updated to address common wear problems. 1-2 Accumulator Pistons, upgraded to aluminum, replace the OE plastic pistons that can cause premature clutch failure Sonnax GM 700R4 1-2 Accumulator Spring 4L60E 4L65E 4L60-E 4L65-E 700-R4 4L70E 4L75E 4L70-E 4L75-E. $7.34 (5) 1 Review. 4L60E Master Rebuild Kit HD Torque Converter Transgo Shift Kit 4L65E 4L70E Automatic Transmission. $503.99 (5) 2 Reviews K012 - 700-R4 700R4 4L60 4L60E Billet 1-2 Super Servo Piston: 74927: 74927 - 700R4 4L60 4L60E 1-2 3-4 & FWD Accumulator Piston (.310OD Pin) 1982-91: K017: K017 - GM 700R4 700-R4 Hydraulic Lock-up Speed Calibration Kit: 74400: 74400 - ATSG Chevy GM TH700R4 700R4 4L60 Transmission Rebuild Instruction Service Manual: 44371 Automatic Transmission Accumulators. Accumulators are shift modifiers that affect transmission shift timing and quality. They absorb the initial shock of high pressure in the apply circuit. When a clutch or band's piston or servo first strokes, there is little pressure in the circuit. As soon as the piston or servo bottoms and the device starts.
6. Loosen the inlet and outlet couplings on the accumulator. Use the correct wrenches, and make sure the fittings do not allow the refrigerant lines to twist. You may to need two wrenches, one on the fitting and another on the compression nut that secures it to prevent damaging the refrigerant lines This 4L60E-3 Reprogramming Kit fits 1993 to 2008 General Motors vehicles equipped with the 4L60E, 4L65E and 4L70E automatic transmission. Common complaints on this transmission are TCC slip or shudder, code P1870 or P0894, harsh 1-2 shift, double bump shifts, 2-3 flare up, burnt 3-4 clutch plates as well as inconsistent pressure boost problems
Sonnax 4l60e 1 2 accumulator. 1-2 or 3-4 Accumulator Spring. Sonnax offers accumulator spring 74926 for use in the 1-2 or 3-4 accumulator of GM 4L60 and 4L60-E series transmissions. The Sonnax spring has identical performance specifications to the purple OE accumulator spring, but is made of high strength material to ensure lasting spring life and reduce spring relaxation This item: Sonnax. GM - The TCU also needs a connection to the factory distributor. This lets the computer know the engine RPM. The computer uses this information to control Wide Open Throttle (WOT) shift points. If you have 77998-03K - 4L60E 4L65E 4L70E Transmission Pinless 1-2 3-4 Accumulator Piston Kit Sonnax: 77733-15K: 77733-15K - Sonnax Reinforced Input Housing Kit with Heavy Duty Input Shaft 77733-15K: 77755-09K: 77755-09K - 4L60E 4L65E 4L70E Transmission Actuator Feed Limit Valve Kit Sonnax: 73 3. 1-2 Shift shudder at WOT; delayed or abnormal 1-2 shift; There's a problem ONLY on the 1-2 shift: 1-2 accumulator piston cracked or stuck cocked in the bore. Check the yellow spring inside the vacuum housing for breakage. Also, if the accumulator housing walls are scored, the housing must be replaced. Easy fix in the pan