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9/22/2017 12:11:25 AM
Posted: 10/2/2005 7:32:45 PM EDT
[Last Edit: 10/3/2005 5:55:56 AM EDT by JFP]
The engine in my bro-n-laws van dies intermitantly and will not start (it does crank over) for 1/2 -3 hours but then runs fine until it decides to do it again. I had an engine do this in an '89 Cavalier and it turned out to be the crank sensor. I asked my bro to check for fuel and spark next time it does this to help narrow it down a bit. any Ideas would be apreciated..........
Link Posted: 10/3/2005 5:56:06 AM EDT
ttt
Link Posted: 10/3/2005 7:54:40 AM EDT
Take it to auto zone and have them read the OBD II code, then go from there.
Link Posted: 10/3/2005 2:09:27 PM EDT
No codes stored. It has been my experience that codes are not always thrown so I am asking for other owners of this engine if they have had a similar problem and what they had to do to correct it. thanks, jp
Link Posted: 10/3/2005 2:51:42 PM EDT
Sounds like a fuel pump over heating.
Link Posted: 10/3/2005 2:59:02 PM EDT

Originally Posted By JFP:
The engine in my bro-n-laws van dies intermitantly and will not start (it does crank over) for 1/2 -3 hours but then runs fine until it decides to do it again. I had an engine do this in an '89 Cavalier and it turned out to be the crank sensor. I asked my bro to check for fuel and spark next time it does this to help narrow it down a bit. any Ideas would be apreciated..........



If you told me this was a late 90s Ford, I would know the answer- Thick Film Ignition. Known service problem requiring warranty work in CA. Probably the Chevy version is what it is. FWIW, I have an 8.1 and have had no problems. TFI is a sensor near the engine not properly insulated and heating up, causing engine to shut down till it cools down.
Link Posted: 10/3/2005 4:02:15 PM EDT
[Last Edit: 10/3/2005 4:05:55 PM EDT by JFP]

Originally Posted By RenegadeX:

Originally Posted By JFP:
The engine in my bro-n-laws van dies intermitantly and will not start (it does crank over) for 1/2 -3 hours but then runs fine until it decides to do it again. I had an engine do this in an '89 Cavalier and it turned out to be the crank sensor. I asked my bro to check for fuel and spark next time it does this to help narrow it down a bit. any Ideas would be apreciated..........



If you told me this was a late 90s Ford, I would know the answer- Thick Film Ignition. Known service problem requiring warranty work in CA. Probably the Chevy version is what it is. FWIW, I have an 8.1 and have had no problems. TFI is a sensor near the engine not properly insulated and heating up, causing engine to shut down till it cools down.



the chevy LT1 had a similar prob with their ignition.

BTW the fuel was replaced.

I've had two '99 GM's that the ignition switch went bad on zt around 65K miles, I later learned this is common.
Link Posted: 10/3/2005 4:06:37 PM EDT
[Last Edit: 10/3/2005 4:07:43 PM EDT by GAcop]
It needs a crank sensor. I just had to put one in my '02 Avalanche 2500. Parts and labor was about $240. It's a common problem with the 8.1 up until late '02.
Link Posted: 10/3/2005 4:13:58 PM EDT

Originally Posted By GAcop:
It needs a crank sensor. I just had to put one in my '02 Avalanche 2500. Parts and labor was about $240. It's a common problem with the 8.1 up until late '02.



$240 to install a crank sensor? The one i put in the Cav cost $25 and took 5 minutes to install :(
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