Truck occasionally dies when stopping
#31
06-01-2011 | 10:16 PM
Captain
Joined: Jun 2010
Posts: 682
Likes: 0
From: Indianapolis, IN
Any time you replace a faulty TPS, you have to reset the PCM. Otherwise, it will not run right. This is because the PCM is still trying to compensate for the errors it "learned" from the faulty one.
In case you are uncertain, this is how to reset the PCM:
In case you are uncertain, this is how to reset the PCM:
- Remove the negative battery cable
- Turn your key to the start postion and hold it there for 30 seconds
- Remove key
- Re-attach negative battery cable
- Start truck and let it idle for about 10 seconds (do not touch the gas pedal)
- Kill the engine
- Start engine again and drive as usual
#32
06-02-2011 | 03:20 PM
Thread Starter
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Amateur
Joined: Mar 2009
Posts: 36
Likes: 0
Any time you replace a faulty TPS, you have to reset the PCM. Otherwise, it will not run right. This is because the PCM is still trying to compensate for the errors it "learned" from the faulty one.
In case you are uncertain, this is how to reset the PCM:
In case you are uncertain, this is how to reset the PCM:
- Remove the negative battery cable
- Turn your key to the start postion and hold it there for 30 seconds
- Remove key
- Re-attach negative battery cable
- Start truck and let it idle for about 10 seconds (do not touch the gas pedal)
- Kill the engine
- Start engine again and drive as usual
#34
06-03-2011 | 06:08 PM
Captain
Joined: Jun 2010
Posts: 682
Likes: 0
From: Indianapolis, IN
His truck doesn't have an EGR system. It would be a good idea to change out the pcv valve though. They are about $4.
Also, if it only gives you problem after it warms up, it could be a pre-cat O2 sensor. They don't always throw codes. Btw, this is an item that should only be purchased at the dealer. These engines don't usually work well with other brands.
Also, if it only gives you problem after it warms up, it could be a pre-cat O2 sensor. They don't always throw codes. Btw, this is an item that should only be purchased at the dealer. These engines don't usually work well with other brands.
#38
07-18-2011 | 02:46 PM
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Amateur
Joined: Mar 2009
Posts: 36
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Sorry been away for a while, recently had a major job change and hadn't have the time to troubleshoot the Dakota. Things are ironing out now and I really want to work on this now as the Dakota is now my daily commuter (ouch on gas).
Another thing I notice is that my truck has been shifting very hard lately. And when it does die coming to a stop, it's almost as if my truck has issue shifting down a gear; like it's trying to lunge to fight against the breaks. Weird eh?
Another thing I notice is that my truck has been shifting very hard lately. And when it does die coming to a stop, it's almost as if my truck has issue shifting down a gear; like it's trying to lunge to fight against the breaks. Weird eh?
#39
07-19-2011 | 02:01 PM
Just a thought. Check the ouput of your Alternator. Being that the 4.7L has a 100% electric ignition system, it is very dependant on the output of the alternator. Any low output of the alternator would dampen the ability of the Ignition system to give a sufficiant spark, thus at idle-down could kill the truck.