Question about 1994 GMC Sierra
If you take the bed off you will need 2 or more people to help take it off and put it back on . There are only 2 long bolts to drop a tank and to me it is easier to drop it then to remove the bed of your truck .
Just make sure that the tank is empty .
Posted on Oct 05, 2014
It's in the fuse box under the hood...also check the relay while you are at it.
Posted on Jan 22, 2013
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Posted on Jan 02, 2017
NO dont drop tank, you will be sorry, take bed off, only like 6 or 8 bolts, and you will have more room to work, and its a pain in the *** to undo the lines and drop the tank, you cant get in there to do it, but just basic tools nothing special, be sure and try not to make any sparks while takein off that ring to get the pump out, and put an ac delco pump on there
Posted on Feb 11, 2009
I have the same problem and have trouble codes 35 and 36. I found out that there is a computer module that needs replaced as it sits low in a valley and gets hot and seperates. I am reseaching about the a/m fix that installs the new module away from heat.
Posted on Mar 12, 2009
had this problem on my neighbors 98 chevy truck with the same engine !!
it turnd out too be the fuel pressure regulator,you have too pull the upper intake too replace it!!
Posted on Jun 06, 2009
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