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05-06-2010, 06:49 PM | #1 | |
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4l60e Transmission out again...need help
I have a 2000 chevrolet 1500 4.8L with a rebuilt 4l60e transmission. About two years ago my transmission went out at 130,000 miles. I understand it happens and decided to have it rebuilt. About 5000 miles after the rebuild, the transmission we out again...I lost 3rd and 4th. I took the truck back since it was still under warranty and he rebuilt it again. This time I took the pan off and replaced the wiring harness, put a corvette survo in and a shift kit. 8 months later and at 145,000 miles and the transmission went out again. This time I had lost 1st gear. I am intending on buying a heavy duty 4l60e transmission and heavy duty torque converter but my question is, what are the odds of a transmission going out three times? It seems like I was screwed on the rebuild but I am also wondering if it could possibly an electronic issue. Any advice would be greatly appreciated.
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05-06-2010, 07:52 PM | #2 | ||
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Re: 4l60e Transmission out again...need help
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what about purchasing a new, never used tranny ?? with the electrical/computer causing failures this would be not that likely..checking with a drive train OEM code scanner however would reveal any wiring computer issues...also the transmission would not work correctly ...if this was the case ...you would feel / see that in its operation... |
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05-06-2010, 10:24 PM | #3 | |
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Re: 4l60e Transmission out again...need help
Losing 3rd and 4th would be related to the direct (forward) clutch and associated parts, such as the forward sprag. Losing 1st without losing reverse could be a valving issue and not a hardware issue, and as j CAT indicates, a scan might be helpful. It could also be a low input clutch or apply piston, or the associated mainshaft seals for that apply piston:
AFAIK, there is no such thing as a "heavy duty" torque converter. There are converters with thicker shells to withstand more RPM without ballooning, and there are cheaply done remans with weak stator attachment, but a stock reman torque converter with a carbon clutch are about as heavy duty as you'll find. GM offers remans for about $200 with a 36 month warranty. A properly rebuilt transmission with proper maintenance should last 200,000 miles. Again, as j CAT advised, lower quality repair parts will exponentially reduce the predicted life. Incidentally, a "shift kit" in an electronically controlled transmission usually doesn't provide any benefits. The PCM will still duty cycle the PWM solenoid to soften the shifts, just as it should.
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05-06-2010, 11:40 PM | #4 | ||
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Re: 4l60e Transmission out again...need help
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I cannot speak to other brands as I only have experience with Transgo; however, an electronic trans can still benefit from a kit if installed and setup properly. //2000CAYukon |
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05-07-2010, 02:01 PM | #5 | ||
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Re: 4l60e Transmission out again...need help
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transman
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GM MASTER TECHNICIAN SR. TRANSMISSION BUILDER Last edited by transman618; 05-07-2010 at 02:18 PM. Reason: Punctuation errors |
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05-07-2010, 02:41 PM | #6 | |
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Re: 4l60e Transmission out again...need help
I agree with the TransGo shiftkit! I bought my 2000 Silverado in 2005 with 104K on it at around 125K I got the P1870 code and took it to the dealer, they told me I had to have it rebuild for about $2200! I did some research online and found out about the TransGo shiftkit so I got one off Ebay for $35 and spend a day under the truck and now I'm at 201K and all I do is hauling and towing and not too shabby weights either, over a ton in the bed or towing up to 10,000 pounds with a 1500 5.3!
Bert
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10-08-2014, 04:16 PM | #7 | |
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Re: 4l60e Transmission out again...need help
Have you tried checking out www.gmtransmissionparts.com ? I started using them about a year ago and seem to have EVERYTHING you need to do a complete rebuild. Quick shipping and they know what they are talking about if you give them a call. Not a toll free number however...
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Tags |
4l60e , 4l65e , rebuilt , silverado , transmission |
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