Question about 1998 GMC Jimmy
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Posted on Jan 02, 2017
SOURCE: fuel pressure regulator
How do you know that it is the regulator?
these 4.3 motors had a lot of trouble from 93 to 98, I know I had 2 of them.
What happened to mine was that the intake kept getting very carboned up. After I would clean it, the truck would run fine for about 5 or 6 months, then same thing.
Theres actually a class action lawsuit about this that I believe has been settled, you may have recourse if you bought it through a dealer. Good luck.You'll need it.
Posted on Dec 23, 2008
The most likely 2 causes are leaking fuel pressure regulator on the side of the spider, or leaking fuel LINE going into or out of the spider. Both are reasonably common failures. a replacement spider would come with a new regulator but NOT a new line, so verify which is leaking before you order a spider up.
They do not fail that often anymore, not like 5 or 8 years ago when gasoline still had mtbe in it, the vortec unit is very dependable nowadays.
Posted on Sep 16, 2009
number 1 is the front Cyl on drivers side.
then it is #3 #5
Passenger side is #2 #4 #6
#1 on distributor cap is the front side of cap next
to the hold down screw clockwise side of the screw.
Firing order goes clockwise looking down on the distribuater.
Posted on Sep 12, 2010
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