Question about 1999 GMC Yukon
It would be cheaper in the long run to get it diagnosed by a professional. dont just throw parts at it.
Posted on Jul 15, 2017
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Posted on Jan 02, 2017
SOURCE: I had my distributor replaced
sounds like your timimg is off either by a tooth or at least a few degrees, does it make a rattling sound when you come on to the fuel hard? Also check to see if your coolant level is going down if so you could have a bad head gasket.
Posted on Mar 07, 2009
NO , just replace the the gasket and exhaust bolt, just make sure you buy a stainless bolt, there not much more but they will out last the truck. and might as well replace the drive's side too since your working on it. Good luck and hope this helps.
Posted on Jul 01, 2009
on my gmc i have 2 knock sensors and im not possitive if you have two or not under your intake mani but when i replaced both mine i got the same code of low input so i took the small needle out and wire brushed it clean and also traced and ran a new wire just to be safe and that solved my problem. as for bank 1,2 if it helps any my bank one is located engine side driverside and bank2 is engine side passenger side and 3 and 4 are underneath bed side. but you can see the sensors if you look real close near the headers. hope this helps
Posted on Jul 02, 2009
you don't say what year, if it has a carburetor it's flooding (Needs a new float) Way too rich
Blue smoke OIL
black smoke GAS
Posted on Aug 30, 2009
Testimonial: "Thanks, this is the direction I was thinking also, but I wanted some input. Blue and Black very helpful!"
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