can anybody tell me how to fix my truck I lose power on hills tried everything HELP PLEASE
390

Asked by cuddlebugs Oct 17, 2013 at 08:19 PM about the 2000 GMC Sierra 1500 SL Standard Cab SB

Question type: Maintenance & Repair

my 2000 sierra loses power on hills please tell me what to look for

3 Answers

migration_judge_roy answered 10 years ago

I'd take a look at the fuel pressure regulator first...it's vacuum source and the operation of the diaphragm...I'm convinced that Chevron with Techron EATS this fuel pressure regulator diaphragm material and causes failures...take a look a this one and change the butyl rubber vacuum hoses with silicone ones (if you can afford them)~

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migration_judge_roy answered 10 years ago

my second guess would be that your EGR valve is crudded up with carbon...take it off and give it a shower with brake cleaner to get all the carbon off of that~put 'er back on and note the operation...the vacuum source...possible cracked vacuum hose on that one too~ switch to silicone~

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