Dies when driving - help please!!

thamick7 · 05-14-2008, 12:28 PM

When driving down the road, (2000 silv. 5.3) shuts down and then idles roughly at about 200 rpm and within a few seconds dies. Pushing the gas doesnt change it any. It will always restart after about 30 seconds. Please any help would be greatly appreciated.

Brandon

bradrhale · 05-14-2008, 03:15 PM

is it showing any codes??

Moostang · 05-14-2008, 06:15 PM

You say "shuts down then idles roughly" can you explain that better, does it completely shut off, or just act like you let off the gas.

I am wondering if it is the fuel pump or a fuel relay..

leolkfrm · 05-14-2008, 07:04 PM

fuel filter, pressure regulator, ping pong ball in the tank! good scan tools are worth their weight in gold

thamick7 · 05-15-2008, 09:20 AM

It is not showing any codes. When driving down the road, the engine shuts down like turning off the key. If i pull right over and put it in neutral, it chugs for a few seconds and then shuts off completely. If it does it when i am at a light, it starts to slowly lose fuel (rough idle) and then goes into the same as above. It is completely random, however when the temp gets to 80, it does it more often on my drive home. up to 5 times so far on a 20 min drive

thanks for all of your help

Brandon

Moostang · 05-15-2008, 10:04 AM

Is it only after the car is warm? If it was a ford I may have to say the fuel relay switch it getting hot

thamick7 · 05-15-2008, 11:05 AM

yeah, only after it gets warm. But it doesnt have to be full operating temp. Another thing that makes this hard to diagnose, is, it only happens on the way home from work about 5pm. it has never died on the way, 8am

Moostang · 05-15-2008, 11:14 AM

Its probably hotter out then, do you know if you have a fuel relay switch? Do you have a hanes manual you can look at?

thamick7 · 05-15-2008, 01:05 PM

yeah it has one

gaander · 05-17-2008, 08:40 PM

Did you replace the fuel relay switch? If so, did it fix the problem? I ask because I have an '88 GMC Sierra 1500 and have been having the same problems. They just put a new ECM in and is still doing the same. Mine does it when it's hot or cold. It doesn't seem to matter much. Thanks.

Greg

05-14-2008, 12:28 PM	#1
thamick7 Junior Member Join Date: May 2008 Posts: 7	Dies when driving - help please!! When driving down the road, (2000 silv. 5.3) shuts down and then idles roughly at about 200 rpm and within a few seconds dies. Pushing the gas doesnt change it any. It will always restart after about 30 seconds. Please any help would be greatly appreciated. Brandon

05-14-2008, 06:15 PM	#3
Moostang Senior Moderator Join Date: Apr 2005 Location: Cali-4 Nye-Aye? Posts: 1,377	You say "shuts down then idles roughly" can you explain that better, does it completely shut off, or just act like you let off the gas. I am wondering if it is the fuel pump or a fuel relay.. __________________ MEOW!! http://moostangproductions.com

05-15-2008, 10:04 AM	#6
Moostang Senior Moderator Join Date: Apr 2005 Location: Cali-4 Nye-Aye? Posts: 1,377	Is it only after the car is warm? If it was a ford I may have to say the fuel relay switch it getting hot __________________ MEOW!! http://moostangproductions.com

05-15-2008, 11:14 AM	#8
Moostang Senior Moderator Join Date: Apr 2005 Location: Cali-4 Nye-Aye? Posts: 1,377	Its probably hotter out then, do you know if you have a fuel relay switch? Do you have a hanes manual you can look at? __________________ MEOW!! http://moostangproductions.com

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05-14-2008, 03:15 PM	#2
bradrhale Moderator Join Date: Apr 2006 Location: Texas Posts: 3,562	is it showing any codes??

05-14-2008, 07:04 PM	#4
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 1,446	fuel filter, pressure regulator, ping pong ball in the tank! good scan tools are worth their weight in gold

05-15-2008, 09:20 AM	#5
thamick7 Junior Member Join Date: May 2008 Posts: 7	It is not showing any codes. When driving down the road, the engine shuts down like turning off the key. If i pull right over and put it in neutral, it chugs for a few seconds and then shuts off completely. If it does it when i am at a light, it starts to slowly lose fuel (rough idle) and then goes into the same as above. It is completely random, however when the temp gets to 80, it does it more often on my drive home. up to 5 times so far on a 20 min drive thanks for all of your help Brandon

05-15-2008, 11:05 AM	#7
thamick7 Junior Member Join Date: May 2008 Posts: 7	yeah, only after it gets warm. But it doesnt have to be full operating temp. Another thing that makes this hard to diagnose, is, it only happens on the way home from work about 5pm. it has never died on the way, 8am

05-15-2008, 01:05 PM	#9
thamick7 Junior Member Join Date: May 2008 Posts: 7	yeah it has one

05-17-2008, 08:40 PM	#10
gaander Junior Member Join Date: Apr 2008 Location: St. Louis, Missouri Posts: 4	Did you replace the fuel relay switch? If so, did it fix the problem? I ask because I have an '88 GMC Sierra 1500 and have been having the same problems. They just put a new ECM in and is still doing the same. Mine does it when it's hot or cold. It doesn't seem to matter much. Thanks. Greg

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