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countrygirl49
New User
Oct 11, 2006, 5:21 PM
Post #1 of 7
(1919 views)
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rough idle
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 My 1994 oldsmobile bravada has been idling rough and missing. Started a couple months ago, I thought it needed some dry gas. Burning rich, leaving a little black carbon on tailpipe. Smells like gasoline a little. oil,transmission fluid fine, nothing dripping or leaking, stopped at Autozone and had them scan it. no faults the computer said. runs fine at speed, but the last couple of days , the rough idling is getting worse. No service light came on, tach doesn't dropped, just idles rough at slowdown and when you pull out. I have a funny feeling it is something that I will have to start small and have a mechanic check out. So any one have any ideas to get me started?
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Oct 11, 2006, 5:40 PM
Post #2 of 7
(1912 views)
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Troublesome without a code???? You'll have one soon though if it's running poorly and that code will probably be misleading.
There could be some kind of vacuum leak that could cause problems and not trip the computer yet.
Suggestion is to find the problem soon and someone here may have an answer. I will say that if you wait too long you will add a catalytic converter to the repair. Hey - good luck and let us know what you find, T
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countrygirl49
New User
Oct 11, 2006, 6:07 PM
Post #3 of 7
(1910 views)
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 Thanks for replying. That was just a Autozone scan, I had it done on October 10 (just yesterday)
I have a funny feeling it is something like that, it has highmilage, but we take good care of it. Iget an oil change reg, check the transmission, we had a new central port put in last April, it is only one year old. No white smoke ,no rattling in engine. in fact it is just the rough idling and missing.My mechanic is pretty good, he said he would start small and start checking. My gut feeling has told me it is something off the wall, and that it is fixable. I will take any suggestions though!
Thanks!!
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Oct 11, 2006, 6:27 PM
Post #4 of 7
(1908 views)
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I've gotta check out this AutoZone scan thing that is posted all over this forum. I have a couple cheapo ones that just blink but they've been correct. It's a pest to count blinks and make them into #s but they work.
I still think you have a vacuum leak and may be hard to find, T
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countrygirl49
New User
Oct 12, 2006, 8:43 AM
Post #5 of 7
(1905 views)
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 Thanks Tom, The hand held computer he used (Autozone) plugs into my computer outlet. Maybe he wasn't doing it right? I checked the oil on my car this morning.. no sludge. and no milkiness or smelling like gasoline like it did when we replaced the central port. and our mechanic changed my oil approx. three weeks ago, he did the central port and he always checks to see what the oil looks like, he is a pretty good mechanic. I haven't driven the car, told my kids and hubby not to drive it until we get it to our mechanic. The only thing is our mechanic lives about 30 miles away, do you think it is okay to baby it over to him the way it is running? or do you think we should flatbed it over. Oh and could this damage the head gasket. Agains Thanks and have a great day!
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Oct 12, 2006, 9:25 AM
Post #6 of 7
(1903 views)
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It's your call to drive it or not. If you don't have a car club like AAA I would get one. My membership costs about $75 bucks but saves me 5% on car insurance and has 100 mile free towing! Discounts on hotels and more so it's really free.
I am not party to AAA and there are others but it's always been good to me. If you have nothing get one. If you want to try AAA they are at AAA.Com or try 1-800-222-8252. I think you should be in some car club like that one.
Check out the car clubs as said they end up being free. With you car problems and distance the less you drive it the better right now but again your call, T
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countrygirl49
New User
Oct 12, 2006, 7:15 PM
Post #7 of 7
(1898 views)
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Tom,hey thought about AAA a few times, of course being on a tight budget, I never seem to get to it, but I do think I will do it now.We have been carpooling between between my son's car and hubby's, like I said they are under strict orders not to drive it... thanks for the info...have a great day!
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