1990 Chev S-10 Blazer Malfunction - Drive Train & Driveline

Question: Hi, I have a 1990 S10 Blazer. It was driving fine, then after shutting if off for about 5 minutes to run inside the house and starting it up again, it would barely move forward or backwards. It seems to have no power. It does move when the engine reaches higher RPM's (sorry no tachometer to give an actual reading). Also, I heard it shift from first to second after reaching a speed of about 5-8 mph. Upon shifting, it continued with no power and high RPM's. Any thought on what this might be (possible a broken torque converter or etc?) I'm about ready to pull the trans. out, but is there anything you recommend checking first? Am I correct in thinking that the transmission itself may be ok since it shifts? Thanks. By the way, the transmission was just rebuilt about 20, 000 miles ago.

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Technican: Hello, How well does the engine respond to the accelerator when the transmission is out of gear (Park or Neutral)? Does the check engine light come on? Is the exhaust restricted (old catalytic converter, muffler)? Is the transmission fluid full? Do you have any remaining warranty on the transmission rebuild? Was the torque converter replaced? Please advise.

Owner: Thanks for getting back to me. The engine responds well to the accelerator. I haven't noticed a change in this aspect. The check engine light does not come on. The exhaust does not appear to be restricted. The transmission fluid is full to the proper level. It had a transmission fluid/filter change about 1 week before it broke down. Unfortunately, the transmission was still under the milage warranty, but the time warranty had expired by about six months. The repair shop was unwilling to be of assistance without my paying full price for them to fix it again. I don't know if the torque converter was replaced at the same time. I may be able to find out by calling the repair shop to see if they have records. Thanks for your help. Any ideas would be appreciated.

Technican: There are tests that need to be run on the transmission. Outside of a road test with a professional you have little hope of a cheap fix. Your repair bill for the overhaul should list the parts used. If the torque converter was not replaced it might be the cause. And, the overhaul was recent enough you should not need "everything" again. Labor is the monster here. Even a seal/gasket can be deep enough in the transmission to be labor intensive. Did a national chain transmission shop overhaul yours? Is there a home office you could appeal your case to? Have you considered offering to pay part of the repair? The shop may be thinking you only want it redone for free. Is this vehicle a "keeper"? It's decision time. You could get a used trans and save some money but your risk remains high. How you should choose to invest from here is difficult to advise.

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1990 Chev S-10 Blazer Malfunction - Drive Train & Driveline

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