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Hi All,
In a bit of a jam, with two cars which are currently INOP. "OLD Dependable" my 89 9000CDT gave up the ghost on the way home from Day Care.
Heard a sound like airbrakes on the highway, short duration, not very loud a couple of times and the exhaust note changed subtley, another early symptom was the "Hissing" sound one usually hears from underneath a SAAB or Audi sounded differently (Not sure if you know what I mean) anyway, car began to run oddly, turbo boost stuck in lowest bar of yellow or wouldn't go up very far (hardly re-acting to throttle) and car was down on power. Shut the car off and picked up kid #2. Car would not re-start normally, turn the key and it would fire, run up to 800RPM or so and stall. Was able to get car started by giving it lot's of gas pedal. It ran, but the idle was all over the place, oscillating between maybe 2300 and nothing, it was as if you were alternately flooring the accelerator and shutting the car off. I was able to limp home (a couple of blocks) something was VERY hot, but the temp gauge was normal more or less. I am suspecting the ehaust was hot due to the unburned fuel being tossed in there, but it could be something else. ALSO, car would run more or less O.K. when given the gas with a load (it would go say 30mph alright, did not try to go faster) but when you let off the gas, the idle was all over the map and it was all I could do to control it in traffic...
Anybody have any thoughts? any help would be HUGELY appreciated..
PS: Car has 150k and exhibited the same symptoms when cold this AM
exhaust seems to be exiting fine, so I don't think it's a blockage there, current thoughts are oxygen sensor, some idle controller or another or maybe the computer? turbo bad? ( car does not smoke and beyond unburned gas, smells mostly normal)
Thanks
Dave
, Tue, 17 Apr 2001 19:11:29
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