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Chevy S10 - GMC S15 and Sonoma Transmission Problems

207 messages,  Last post on Oct 29, 2009 at 7:56 PM

You are in the Chevrolet S-10 & GMC S15 Sonoma Forum. Your Host is kcram

What is this discussion about? Chevrolet S-10, GMC S-15, GMC Sonoma, Transmission, Truck


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#148 of 207
Re: 1999 chevy s-10 pickup 2.2 engine - code p1870??? [gonogo] by tony2x43
Jul 23, 2008 (12:28 pm)
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Replying to: gonogo (Jul 23, 2008 9:46 am)

it has about 110,000. now that i failed inspection because of it, do i need to rebuild trans? do you think there is anything i can do to get it to pass?
#149 of 207
Re: 1999 chevy s-10 pickup 2.2 engine - code p1870??? [tony2x43] by gonogo
Jul 24, 2008 (8:16 am)
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Replying to: tony2x43 (Jul 23, 2008 12:28 pm)

Erase the code and don't go far to get it checked, it most likely will not set a code. Some day the transmission will over heat and damage the converter and clutches.
#150 of 207
1995 S10 clutch issues by felton1975
Oct 13, 2008 (5:19 pm)
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I have a 1995 S10 pickup with standard transmission. Around 230,000 miles. All I've ever really replaced is water pump, alternator, battery, u joint, etc. I drove the truck home one day from taking off the trash to landfill and parked it. The wife and I left to go out of town for the night and when I returned the next evening about 24 hours later, I got in it and the when I pushed down on the clutch, I didn't meet any resistance. I pumped the clutch and finally got it in reverse and backed it out of the driveway, but had numerous issues shifting it any more than that. I finally got it parked out of the way and have been trying to guess what is wrong with it. It will not shift even when the engine is turned off. The master cylinder is full of fluid and when I have my nephew pump the clutch there will be a few tiny bubbles come up to the top of the master cylinder reservoir under the hood. But the clutch still does not disengage for me to shift. Is this a slave cylinder issue? What do I need to do to correct this problem. Looking for cheapest possible solution. Old truck, but has much sentimental value. Thanks in advance, guys...as you have guessed, I am not a mechanic, but can do certain things.
#151 of 207
1999 Chev S-10 trans. issues by kvnnorden
Oct 14, 2008 (7:05 pm)
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I have a 1999 Chev S-10 4 cyl automatic transmition with 150K miles. I have had the truck for two years and have put 15k miles on it, during the entire time i have owned the truck it has run very well, despite having the ABS light lit on the dash. A few days ago i was driving on the highway for about 30 miles, as I was about to get off the highway the engine ran up to 4000 rpms and the overdrive was no longer working. I drove it home fine staying under 50 mph, after turning the truck off and making another trip a short time later the overdrive was working fine. I checked the trans. fluid it was a hair low so i added a quart. Truck is now running fine however from 50-55 mph the rpms go from 2000 to 2300 to 2000 to 2300 and so on until you go over 55 mps. Other than that the truck runs just fine. (ABS is indicator light is still and has always been on) Local mechanic says need new transmition do you all have any suggestions of what the problem may be? Thanks Kevin
#152 of 207
Re: 1996 S-10 2.2L automatic shift/timing solenoid [gruszewski] by dakotav847
Oct 28, 2008 (4:18 pm)
Reply

Replying to: gruszewski (Jun 07, 2008 4:03 pm)

You are going to have to rip the trans out and apart to get to the solenoid. If you are lucky you could just drop the pan and get to them. You will have to find out witch one b/c there will be two of them. If you plan to keep the truck for a while, you should just replace them both and be done with it.
#153 of 207
Re: 1999 Chev S-10 trans. issues [kvnnorden] by dakotav847
Oct 28, 2008 (4:23 pm)
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Replying to: kvnnorden (Oct 14, 2008 7:05 pm)

It sounds like the clutch plates are going out so you will have to take out and rip the trans apart or you can always try to flush it out. It would be cheaper to flush it out first and if that dosn't work than you will have to rip it out.
#154 of 207
90 S15 4WD Auto Trans Problem by stewman1
Oct 30, 2008 (9:31 am)
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I'm the original owner of a 90 S15 4WD, 4.3L V6, Auto Trans w/ 145k miles, that just started shifting into neutral after 2nd gear. 1st and 2nd seem to work fine, after that it's just neutral. Fluid level is fine, color was ok. I took it to a tranny guy, who said the tranny needed to be replaced $1,500 w/ a 12K 12mo warranty. He said this is common for this tranny at around this mileage after he looked under the truck and looked for a cable near the carb to verify what tranny it was.
 
I didn't see any mention of this in here.
Any suggestions or is this guy right on the diagnosis?
Thanks.
#155 of 207
Re: 90 S15 4WD Auto Trans Problem [stewman1] by stewman1
Oct 31, 2008 (10:32 am)
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Replying to: stewman1 (Oct 30, 2008 9:31 am)

don't laugh too hard, but would it be cheaper to replace the auto w/ a manual?
#156 of 207
by stewman1
Nov 05, 2008 (3:26 pm)
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anyone have anything?
#157 of 207
2002 S10 ZR2 Overdrive problem by vangaurd
Nov 08, 2008 (2:39 am)
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I am experiencing a very disturbing problem when my auto transmission shifts to overdrive and I am looking for a possible diagnosis and/or a less expensive alternative to replacement or shop repair.
 
When I ask the engine to get me up a mile long 10* grade incline, the engine RPM kicks up but no power is being delivered to the drivetrain. I immediately start to loose momentum and slow as the engine continues to try and maintain highway speed. When I let off the gas to allow the trans to shift back to lower gear, power is restored to the drivetrain, but not enough power to get me to the top of long incline above 35MPH.
Appreciate any suggestions

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