What is your question?
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What is your question?
When the engine warms up. It runs good until you drive it. Will go dead when you let up on gas pedal.
What makes this problem better or worse?
It's good when engine is cold. Warm engine doesn't want to idle
How long has your 1999 Plymouth Voyager had this problem?
Since I had to change computer
1 Reply
Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I'm sorry to hear you're having trouble with your Voyager. Swapping a computer from another identical vehicle might work temporarily, but differences in programming or immobilizer settings could cause issues. The symptoms you're describing suggest the idle air control valve or throttle body could need cleaning or replacement. Warm engines rely on precise air-fuel mixtures, and a faulty idle air control system might struggle to maintain idle. A vacuum leak, malfunctioning coolant temperature sensor, or improperly programmed computer could cause similar issues. Since the problem started after changing the computer, you might also need to verify the compatibility of the replacement and check for proper synchronization with your van's systems. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!