00 1500 starts but wont stay running
00 1500 starts but wont stay running
truck sat for over a month without starting, has been very cold! we changed the starter and battery added gas and stabilizer, vehicle now starts but only for a sec or 2, push the gas it makes a vac sound and shuts down. very unclear why it doesnt start! is it just cold? also tried starting fluid had no effect still kept shutting down??? Please help??
Re: 00 1500 starts but wont stay running
Could be a security issue. Is the security light illuminated in the dash? If so, that will cause the truck to start and die out after a couple of seconds. Usually a faulty Passlock sensor is the problem there.
If it's not a security problem, I'd first recommend a fuel pressure check just to make sure that's ok. Check for spark and that the ignition system is functioning correctly. Maybe try scanning it and see if any codes are present, that will always help aid in diagnosis. If it's not a fuel problem, or spark issue, and you're sure the truck has compression, then you'd be looking at a possible computer problem, wiring issue, or other sensor that has failed.
If it's not a security problem, I'd first recommend a fuel pressure check just to make sure that's ok. Check for spark and that the ignition system is functioning correctly. Maybe try scanning it and see if any codes are present, that will always help aid in diagnosis. If it's not a fuel problem, or spark issue, and you're sure the truck has compression, then you'd be looking at a possible computer problem, wiring issue, or other sensor that has failed.
GM Dealer Technician For 18+ Years
In the automotive industry for 20+
In the automotive industry for 20+
-
- Similar Topics
- Replies
- Views
- Last post
-
- 8 Replies
- 18109 Views
-
Last post by CrazyW
Sat Jun 17, 2017 12:13 pm
-
- 1 Replies
- 9187 Views
-
Last post by carriedi
Sat Dec 25, 2021 10:06 pm
-
-
New post 95' GMC G2500 5.7 won't stay running
by Beerstalker73 » Thu Sep 07, 2017 8:16 pm » in GMC Trucks - 4 Replies
- 11384 Views
-
Last post by carriedi
Thu Sep 21, 2017 11:13 pm
-
-
-
New post 2001 Chevy suburban won't stay running
by Trudy » Sun Jul 22, 2018 3:00 am » in Chevy Suburban - 1 Replies
- 11617 Views
-
Last post by carriedi
Tue Jul 24, 2018 8:55 am
-
-
-
New post 1999 suburban 5.7 Starts intermittently Cranks few second
by Ndrivers1988 » Fri Jul 22, 2016 11:38 am » in Chevy Suburban - 3 Replies
- 11067 Views
-
Last post by carriedi
Sat Jul 23, 2016 12:19 am
-