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Sedans Oldsmobile Aurora Oldsmobile Aurora Engine Problems
89 messages, Last post on Nov 29, 2009 at 8:20 PM
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Replying to: dman248 (Jun 28, 2007 8:56 am) Les |
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its a v6 with 70k. the dic reads "low oil pressure" and the oil light on the dash comes on at the same time. this is only when i start it up after it has been sittin for hours. the light and the dic message pops on and off for few minutes then goes out after driving for about 5 to 10 min. and now the check engine light has come on and stays on. the oil level is fine, i just checked it yesterday. the "low oil pressure" diaplay and oil light on come on after starting and goes out after a few minutes of driving. maybe this has something to do with the check engine light?
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| 97 Aurora just replaced crank shaft sensors, but the car still wants stall when idling and warmed, but when it gets ready to stall and you give it some gas, it bogs down and dies out. Any suggestions to what could be causing this problem ?? | |
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Replying to: dman248 (Jun 29, 2007 6:01 am) I have had exactly the same problem (same year, same car, etc.) and it has been in to several mechanics with no luck. Have you gotten any help with this problem? Fred |
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Replaced the wires on the car as a couple of them had burn marks on them. since then when in drive and idling in traffic the car now stalls. up until the wires were replaced the car did not stall. checked and there is no vacuum line off. it does this after the car has been running about 10 minutes and continues to do it while you are idling in traffic. any ideas what could be the problem now?
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Replying to: doucette (Nov 11, 2007 5:00 am)
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Replying to: dman248 (Jun 29, 2007 6:01 am) Stopped and ran a computer engine code check at Monroe, they said it read "misfiring cylinder" - try a tune up first. I'll try that first after Christmas before a full scan is done at the Cadillac dealer - more to come... |
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To summarize a LONG December with my car maintenance and troubleshooting: Aurora V8 4.0, 83,000miles, After new exhaust pipes/mufflers, then wheel bearing/ABS sensor replaced with electrical troubleshooting done and corrected in early Dec, a week later (Christmas Eve morning), I cold start and the car runs terribly, chugging, sputtering, etc like I've never heard before from it (cat convert is still good). Engine light on then even started flashing at times (did not drive when flashed other than the first time for a short distance off the highway). When idling and warmed up to normal operating temp after ~25min, car runs smoothly again (light sometimes went out, sometimes not once running smoothly). Dealer got a misfire code on #1 cylinder especially but others were random, they changed spark plugs and 1 coil, the other components were fine and tested good. Problem still not fixed with misfire on #1 after many diagnostics: tested wires(boots)-all good, fuel injectors good, all sensors appear working/O2 sensors, MAF, ECM, etc no codes related. They narrowed down to carbon buildup (also called in to GM for second opinion and they agreed/no other thoughts). Two different engine flushes were done 12hr flush with the injectors, I guess a top and bottom flush as they called it). It appears that per dealer (who is reputable and we have a 4 year relationship so trustworthy of being upfront with me, gave me about 1.5 days of these diagnostics w/out additional payment),,, we're down to a "99% sure it's a sticky valve as they've seen before often, thought is since no electrical codes or components are obvious via testing, it's mechanical - carbon buildup in cyl #1 at cold start, car runs poorly for the period of time until it's warm enough for the valve to open up and move freely". I've been given the GM fuel additive to run through the car which I've driven about 150 miles with (1/4 tank). The dealer has the car back until tomorrow so they can give me a quote on tear down, send out for internal engine cleaning, and so if that works to clean out carbon and possibly resolve? Once through this terrible run period, the car runs beautifully and with the updates and new plugs, has great power back so I'm torn with what to do. Any thoughts/similar experiences/new ideas or products to save from the decision of paying another big money output or choosing to sell the car early for a new? Thanks for any help,
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Replying to: meadster (Jan 01, 2008 11:52 am) had a similar problem with my 1998 Aurora, car ran great when warmed up but when first starting from cold the car idle fluctuated and the whole car would shake like it was not running on all cylinders. took it in to the GM dealer who diagnosed that the intake manifold needed to be re-torqued. I gave the go ahead for them to do it and it solved the problem. the intake manifold was sucking air which was causing it to have a rough idle when cold. cost for me was about $300.00. good luck |
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Replying to: butchmotors (Dec 07, 2007 10:52 am) Thanks. |
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