vehicle won't start

Asked by Jan 19, 2015 at 12:20 PM about the 2001 GMC Yukon SLT

Question type: Maintenance & Repair

I have a2001 Yukon that won't start... I have checked the batteries and alternator...
recently replaced  the fuel pump.  one day it started then shut off and now it won't start.   
what am I missing?

5 Answers

10,130

Start by checking all fuses and relays. I hate to say this, but you should probably have the fuel pressure tested. even though you put in a new pump, it could still be bad. happens a lot unfortunately.

1 out of 1 people think this is helpful.
110

I have a 92 Yukon SLE a two door I replace the fuel filter ignition module to coil and my vehicle still haven't started up I'm having problems trying to start it I don't know which fuse is diffuse I have to check for the motor or I replaced the fuel relay and all and I'm still having problems please give me some understanding about this vehicle

1 out of 1 people think this is helpful.
10,130

You might have the fuel pressure tested Adam. It has to meet a certain specification or it won't run.

110

how do I do that I'm thinking it could be the ECU cuz the guy I bought the truck from said that it was a short in the wire somewhere

10,130

You have to hook up a fuel pressure gauge to the fuel line under the hood. If you don't own a fuel gauge or know how to do it you can buy one and google the procedure, or have an experienced mechanic do it. Also if you have a short in wiring there are procedures to locate them. I would suggest a YouTube vide on the subject. They can be very helpful.

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