Question about 1996 GMC Jimmy
My 96 Jimmy runs really rough in temps above -10C but below that it runs great. When it runs rough it even lets out an occasional small back fire sound. We just had a week of below -20C weather and it ran great all week. Today it was -7C and it ran terrible. Any suggestions? Nothing showing up on code reader.
Hi Buc, have a look at all the intake manifold ducting and make sure nothing is broken and leaking air. Also make sure that all vacuum hoses are fitted tight and correctly and they are not loose, broken or cracked. It will be better to check each by disconnecting, checking and refitting. Let me know how you get on. Have a happy new year. Regards John
Posted on Dec 31, 2012
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Posted on Jan 02, 2017
SOURCE: MULTIPLE RANDOM ENGINE MISFIRES
I have same problem with my 2003 Dodge Grand Caravan.
I just read this article below, hope it will help you..
Posted on Nov 23, 2008
did you do a fuel pressure test? if you havent do it its cheep an at least you can elimanate that. if thats not an issue, then there is only two other things crank sensor, and if there is one cam sensor.
Posted on Feb 02, 2009
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