Question about Cars & Trucks
Could be the fuel pump or you might try changing the fuel filter also
Posted on Dec 15, 2016
You need to have the engine control module scanned for fault codes, this is the very first step to finding out what is going on here. If you have a flashing check engine light then you have a misfiring engine, the test will reveal which one is missing. Any Autozone or other chain parts store will do this test for free (except California)
Posted on Dec 15, 2016
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Posted on Jan 02, 2017
SOURCE: loosing power at cruising speed
Hi. I have two Dynasty LE cars, (a 91 and a 93). Both have the 3.3 litre. The 1991 had almost the same problem as yours except it would only do it once the engine warmed up, (similar to your freeway issue, given distance and time for the engine to warm up to operating temp.) I had it in about three shops before the dealer found an intermittent fault with the cam and crank sensors. I replaced them and now it runs just fine. I hope this helps.
Posted on Nov 06, 2008
Is there any white smoke coming out the exhaust? Sounds like the same problem my friend had when he warped his head on his 91 civic. Any overheating at all? Otherwise another guess would be maybe a bad catalitic converter that clogged up. Hope this helps any, good luck
Posted on Nov 12, 2008
You may have a problem with idle speed control motor or ETC as GM calles it. here is a photo and a price from rockauto.com.
STANDARD MOTOR PRODUCTS Part # SA4
Motor Assembly $110.99
Posted on Apr 18, 2009
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