New-to-me 2013 Grand Caravan RT with 119,000 miles. After the van has been driven around 20 minutes it will start stalling inconsistently at stops, prior to this it runs great before warmed up. Just prior to stalling the RPMs bounce around 500, and if shifted into neutral quickly the van will not stall and I can idle fine at the stop, but when shifting back into drive it will stall unless gassing it quick. Also when it dies, it will start again fine in neutral or park, but when shifting to drive it will want to die again. There are no check engine lights on. Sometimes it will do it every stop, and sometimes 1/10 stops. In order to fix this the previous owner had the transmission, torque converter, solenoid block, and TIPM replaced recently which did not change anything. I have a new MAP sensor on the way. What else could be causing this problem? Thank you so much for any advice.
kmdExe
Thanks for the input everyone. Transmission, torque converter, and solenoid replaced less than 2,000 miles ago which didn't help. Previous owner did have dealer working up problem last month, here are their notes - seems as if they were unsure though they replaced TIPM with no effect. I was under the impression that the 5th gens did not have the IAC valves anymore? It does not want to pull forward more than usual when stopped in drive. I'm not sure about the brakes actually, I will try that today and see although there are typically no symptoms at all when in neutral.
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I removed the throttle body today and it was somewhat dirty, cleaned it but it’s still running the same - didn’t actually get it to stall but it gets very close. Doesn’t seem to be affected by pumping the brakes. I’ll check for air leaks tomorrow.
After replacing MAP sensor and PCV valve, I gave up and took the van to the dealership (different dealer than previous owner took it) for diagnosis who concluded "verify stalling concerns, no DTC in vehicle system, happens hot only, verify trans not free wheeling, converter not releasing. Fault is coming from torque converter or from transmission assembly internally." With everything already rebuilt less than 1,800 miles ago, I'm about to sell this and take the loss.
About 10-20 miles after taking the van to the dealership last month and them saying it needed a new transmission, the van fixed itself (while on the way to the transmission shop ironically) and has been running great and not stalling at all over the past 1,000 miles. Shortly after the stalling was fixed, it did randomly start consistently shifting very hard a few weeks ago and I thought the transmission was surely going out, but I turned off Eco mode and that hard shifting stopped immediately and hasn't returned with Eco mode off. I don't know what fixed the stalling thing but I'm not mad about it, will report back if it returns. Thanks all.
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