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I have 2003 GMC YUKON 5.3L that suddenly stopped running.
I have 2003 GMC YUKON 5.3L that suddenly stopped running. Dome lights work, nothing happens when I turn ignition key. Please help. … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
6,184 satisfied customers
I just put in a new engine, now it will not crank with key,
I just put in a new engine , now it will not crank with key , security messsage is off,have fuel pump pressure,and spark ,runs if I spray fluid in plenum and jump the starter , also, no head lights , … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
1,234 satisfied customers
It starts but cuts right off. 2006 2500hd. I tried leaving
I tried leaving the key in the on position for 10 minutes, cause i read that it could be that … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,823 satisfied customers
When the keys are removed the dash lights (radio/etc.) do
When the keys are removed the dash lights (radio/etc.) do not go off ? And there are many times when the keys won't come out of the ignition - - - Concern is the lights on the dash that won't go off … read more
Jared D
Jared D
Shop Supervisor
Bachelor's
2,294 satisfied customers
This one has me stumped. 2006 GMC Sierra 2500HD Duramax. The
The electric windows will not operate unless the engine is running. … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,823 satisfied customers
Talked to greg eirler did what he said still have problem.
talked to greg eirler did what he said still have problem … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
626 satisfied customers
Have a 2007 GMC Yukon Denali (6.2 liter) with around 270,000
Have a 2007 GMC Yukon Denali (6.2 liter) with around 270,000 miles and recently we had the starting continuing to engage when cranking. With the Key was released from "start" it would still continue t… read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,077 satisfied customers
No spark no fuel, No it's always been a big. 7.4, Gas hog...
Module, oil pressure switch. Now I am thinking fuel pump … read more
Gary
Gary
ASE Certified Technician
18,049 satisfied customers
Just replaced engine and when I try to start, the starter
just replaced engine and when I try to start, the starter runs intermittently and the lights on dash blink. If I jump the solenoid at the starter with key on it turns over fine but lights still blink … read more
mike switzer
mike switzer
728 satisfied customers
I have 2003 trailblazer ext that the blower motor wont' shut
I have 2003 trailblazer ext that the blower motor wont' shut off....I have opened both front and rear fuse and removed what I think are the correct fuses...it is still running help … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
Anti-theft keeping truck from starting. New battery when you
new battery when you try to start it nothing happen … read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Fuel pump stoped working .had to have the truck towed.
fuel pump stoped working .had to have the truck towed. replaced the fuel pump when i tried to start the truck the key the key turns but when it gets to the point to start the truck the key will not tu… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
I replaced blower motor fan resistor on 2007 chevrolet
i replaced blower motor fan resistor on 2007 chevrolet trailblazer (WASNT WORKING ON ALL SPEED) A COUPLE OF WEEKS LATER THE SPEED STARTED GOING OUT ONE BY ONE. SPEED ONLY WORK S ON THE # 2 SPEED. WHAT… read more
Jared D
Jared D
Shop Supervisor
Bachelor's
2,294 satisfied customers
2007 gmc yukon denali engine wont shut off even with the key
2007 gmc yukon denali engine wont shut off even with the key out, i replaced the key switch and it still does it … read more
molurch
molurch
Owner
Vocational, Technical or Trade Scho
941 satisfied customers
2005 gmc sierra 5.3 crew cab 4wd with t engine. codes that
2005 gmc sierra 5.3 crew cab 4wd with t engine. codes that come up po480,po300,po100. The cooling fan runs when the key is turned off and quits running when the key is turned on. Intermittently the en… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,823 satisfied customers
left key in ignition over night now key wont come out &
left key in ignition over night now key wont come out & car has no power how do i reset the anti-theft it is a 2007 gmc envoy… read more
Aran
Aran
Technician
Associate Degree
392 satisfied customers
GMC Safari Van: Key turns in 92 GMC Safari van ignition but
Key turns in '92 GMC Safari van ignition but stops before the point of ignition. The electricity comes on when the key is first turned, but it goes off when the key is turned as far as it will go. Whe… read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 satisfied customers
GMC Yukon Denali: I have a 2002 Denali with the 6 liter v8,
I have a 2002 Denali with the 6 liter v8, while driving on the highway the car started surging and then I lost power completely, it will only start and run for maybe a second or two now and then die. … read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 satisfied customers
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,823 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

18,049 satisfied customers

GCM master tech over 25 years

Dave Nova

Dave Nova

GMC Technician

929 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

GMC Technician

626 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

279 satisfied customers

18+yrs experience. State Inspector & GMC Diagnostics/Repair

JFN1

JFN1

ASE Certified Technician

270 satisfied customers

GM Master Technician

George H.

George H.

ASE MasterTechnician

228 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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