2000 Expy starting to stall
Thread Starter
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Freshman User
Joined: Mar 2010
Posts: 43
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From: NJ
2000 Expy starting to stall
I recently replaced coils 1,2,4 and 8 due to P0301, P0302, P0304 and P0308 codes.
The truck was running rough due to being driven through water. After replacing the coils the truck was running excellent up until Thursday. I drove the truck 60 miles to a site and 60 miles back home, as I was pulling into the driveway, I braked for the curb lip and the truck stalled, this never happened before.
I did a good visual inspection and can see no loose hoses or connections.
I read a nice post on throttle body cleaning and thought this would be a good place to start. The truck is a 2000 and has 60,000 miles and has never had any issues until I drove through a flooded under pass a few weeks ago.
Any input would be appreciated.
The truck was running rough due to being driven through water. After replacing the coils the truck was running excellent up until Thursday. I drove the truck 60 miles to a site and 60 miles back home, as I was pulling into the driveway, I braked for the curb lip and the truck stalled, this never happened before.
I did a good visual inspection and can see no loose hoses or connections.
I read a nice post on throttle body cleaning and thought this would be a good place to start. The truck is a 2000 and has 60,000 miles and has never had any issues until I drove through a flooded under pass a few weeks ago.
Any input would be appreciated.
Fleet Owner
Joined: Apr 2008
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From: 0,0,1
I'd start by disconnecting the battery for 10 minutes to clear out the learned data. The PCM could be trying to run the engine on the new coils based on data learned using the old coils. If that doesn't solve the problem, then taking off the IAC valve and giving it a good cleaning should be next on your list.
Thread Starter
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Freshman User
Joined: Mar 2010
Posts: 43
Likes: 0
From: NJ
I'd start by disconnecting the battery for 10 minutes to clear out the learned data. The PCM could be trying to run the engine on the new coils based on data learned using the old coils. If that doesn't solve the problem, then taking off the IAC valve and giving it a good cleaning should be next on your list.
Thank you
Thread Starter
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Freshman User
Joined: Mar 2010
Posts: 43
Likes: 0
From: NJ
I just pulled the throttle body and cleaned it well along with the tubes/hoses. I replaced all the gaskets and for now the truck is running like a champ.
The moment of truth will be when I run it through Motor Vehicle. I thank you for your quick response and will keep you posted.
Again, thank you.
The moment of truth will be when I run it through Motor Vehicle. I thank you for your quick response and will keep you posted.
Again, thank you.
