Question about 1992 Oldsmobile 88
After a long uphill drive, on the restart of my car after an hour of parking.. the car started shaking when i started it, and then shut right back off. i then restarted it and it started shaking really bad again.... i then pulled off to see if it changed and as i started down the mountain the shaking stopped but my temp gauge read roughly 30 degrees higher than usual... when i got to the bottom of the mountain i checked my fluids and they were all okay, i do need an oil change but i do not think that is the issue..... the issue stopped after this stop but later in the day when i went back out the shaking happened again but only after the initial startup and til i drove it for about 10 seconds... the temp was still about 30 degrees higher than usual which means it was slightly above 200... really worried. note- i had my transmission and torque converter rebuilt/repaired roughly 4 months ago.
Could be plug fouling out from leaky fuel injector flooding engine when you shut it down, then clears after running some, however, running hot is not a good sign and could point to head gasket leak. Many other possibilities too, but I would start with examination of spark plugs.
Posted on Jan 19, 2015
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Posted on Jan 02, 2017
If you can smell gas ONLY when the engine is running, then the gas didn't get
burned completely. It could be the combination of the computer, oxygen
sensors, and/or catalytic converter is going bad. If you could smell gas when
it's parked, you might want to take it to a mechanic to have your gas line
checked for leaks and for pressure test. Here's a website that talk a little about
gas smell www.mycarsmellsbad.com good luck.
Posted on Jan 09, 2009
It seems that you have a loose wire, bad connector or perhaps the main computer itself that is causing a problem If the shop is not seeing any codes, or codes come and go, likely I'm right...but someone is going to have to actually do some intensive testing to find the real cause. You can likely get another computer from a local scrapyard far cheaper than what the dealer will charge you...as far as wiring, you need a good accurate schematic a good volt/ohmeter and lots of time to trace wiring. When checking connectors test the pin, then probe the wire going into the pin...often the problem is where a wire meets the backside of the pin, either corroding or breaking..This also applies to any modules such as the security system...what you see on the dash does not always tell you that connection to components is good. This is not a "fix, but rather, a direction to go in. (exactly what I"d need to do if I was there)
Right now, everything is suspect including fuel system, till you rule it out!!!
Posted on Jun 05, 2009
This has me thinking because its an older car and iam thinking of our europeon models.But if this is a californian model ?? then i would be totally wrong.But to start with i would check the any pipes connected with the inlet manifold,for air leaks ,like the brake servo feed pipe and any small ones that work the fuel vapour thingy or the gearbox.Then if that doesnt work then get a local garage to have a look because a mechanic would have come across this before and would have a good idea what to change without a meter reading .my one suspect is the air flow meter
Posted on Oct 23, 2009
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