Question about 1997 GMC Sierra
While the 90PSI. is low, it will run ok like that. Check to see if it's getting spark from Dist.cap to that plug, it could be a bad igntion wire. If you find everything's good, then these motors with this type injection system have problems with the injection module and have to replace the unit as the nossels aren't seperate.
Posted on Mar 21, 2011
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Posted on Jan 02, 2017
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