Question about 1991 Oldsmobile Toronado

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On My 1991 Olds Trofeo 3.8 If I Drive Realy Easy It Runs Fine But If I Hit The Gas Pedal To Fast Or Hard It Blows A Fuse That Powers The Inighion Moduel Then It Dies.If I Sit Still In Neutral And Gun The Motor All I Want No Problem, But If I Try To Take Off Just A Little Fast Bam Fuse Blows. I Put A New Inighion Moduel In And All 3 Coils But It Did Not Help.Anybody Ever Come Across This Before?

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  • Raymond Clark Apr 13, 2014

    Thank's for the idea,but I figured it out before this was sent it was the wiring harness grounding out at the back of the motor but not because or motor mounts.It was to tight running down the back side of the motor so I made it longer and now everything is fine.



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Have you checked your motor mounts? Stomping on the gas in gear torques the engine. If the mounts are bad the engine will move (it's not supposed to) and this may strain the wiring harness which can then come into contact with the frame or something that could short a wire to ground. It is very unlikely that the problem is in the ignition module itself or any of the coils, as you probably discovered when you replaced them and the problem didn't go away. Open the hood and have someone rev the engine GENTLY while you watch. The engine shouldn't move very much at all. Check your wiring harness at any possible point of contact if the engine does move and look for cuts, gouges, exposed wiring, etc.

Posted on Apr 12, 2014


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SOURCE: 95 Olds 88 dies

Tried the crankshaft sensor, still dies, bigining to think injectors or fuel rail....

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chances are the the solenoid that controls the 4- wheel drive is either faulty and causing a short or the wire harness leading to it has a short. the solenoid is a dealer only itm and should be checked by a certified mechanic.. please rate this

Posted on Dec 04, 2008

  • 84 Answers

SOURCE: 1991 olds 98 regncy elite blower motor not working

There is a fusible link for the blower motor. Check that. Don't know where it is. Look up the wiring diagram at Also check the fuse in the fuse box. Could just be that.

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SOURCE: 1993 olds cutlass supreme 3.1 multi port loading up at idle

Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

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SOURCE: 1990 oldsmobile cutlas calais 3.3L runs fine in park and neutral

Torque converter clutch is stuck on. Need to visit transmission shop unless you are experienced with internal transmission repairs.

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