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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15133
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I have a 1996 GMC 3500 bucket truck with 7.4 vortec. It

Customer Question

I have a 1996 GMC 3500 bucket truck with 7.4 vortec . It starts fine, will run and idle fine for 10 minutes, then it starts to surge, speed up and slow down, then it wil die. It will start and do this two or three times, then it will die and it may not even hit for an hour or two. but then it will do the same thing again. Is this a fuel problem or a firing problem?
JA: Does the engine turn over? How old is the battery?
Customer: The engine turns over fine.
JA: What is the model of your '96 Chevy?
Customer: 3500
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: I'm not a mechanic but can fix some things. depends on what it is. I havn't done a thing yet.
JA: Anything else you think the mechanic should know?
Customer: I just want to know if it sounds like a fuel pump, fuel regulator or maybe a problem with the firing.
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chevy Mechanic about your situation and then connect you two.
Submitted: 4 months ago.
Category: Chevy
Expert:  JOHN aka Eauto replied 4 months ago.

is the check engine light on?