2000 - Chrysler 300m starting problems -40k miles.

Cranks ok. No start. Tach sort of floats up to 1k then back down to stall. Has happened 5 times in the last 2 weeks. Run into a store for a few minutes, hop back in, crank, no start. Every time the outside temp was pretty hot 90+. Let the car sit for an hour or so, then it starts up & runs fine (usually by the time AAA shows up). First I thought maybe vapor lock. Let the gas cap vent for a bit. No luck. Happened 3 times last weekend, then I had it towed into the dealer. No Trouble Found. Drove the car (mostly highway) all week. Ran a can of gas treatment/cleaner through + 2 tanks of high test. Car ran fine. No hesitation. Mostly highway, 2 hr+ duration. Got to this past Sunday, ran to the store for ten minutes. Same thing. Had it towed back into the dealer.

Dealer seems clueless. No computer codes showing any faults. They've just had it sitting there, running it, trying to get it to not start. They had the thing for 2 days last week. This week it's been there since Monday. Can't duplicate it. Car starts fine. Dealership has put me in a loaner for now, but I have a feeling I'm going to get the old "NTF" tomorrow.

First trouble since it rolled off the lot 3 years ago.

SC.

Reply to
SC
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Doesn't the anti-theft sentry-key thing work like that?

I mean, if the car is started without the computer being able to sense the key then doesn't the engine run for a few seconds then shut down?

Reply to
Mopar Man

Appreciate the advice. Dealer called me today and said they'd like to keep it one more day. They did offer to hook up the "black box co-pilot" last week. Then when I went to pick it up they completely started back pedaling. Service dweeb said that he didn't think it would help in this case. If I do leave there with my car, I'll insist on having one hooked up before I leave.

I'll try a couple of the simpler things like looking for loose connections this weekend.

Stay tuned... Thanks aga>

Reply to
SC

Maybe but I had a similar refusal to start problem and did not replace the fuel pump and the problem has not recurred either. Dealer was clueless.

highway, 2 hr+

minutes.

They've

Reply to
Art Begun

Reply to
mic canic

Cam sensor most likely, then maybe fuel pump, or fuel pump relay. Also liked the suggestion of checking the sentry system, very possible

Reply to
Galen

Reply to
Dale Greep

This could be an ignition problem. Put some ice in a plactic bag and hold it against the ignition module. After it cools off, crank the engine and see if it starts. You may want to pull a spart plug wire and attach it to one of those spart testing devices that look sort of like a spark plug. Do not hold the wire while someone cranks because the currents produced are enough to stop the heart. Same thing goes for an old magneto. My father had a friend that died from a magneto shock.

Reply to
Edward

There are no plug wires on the 300m. A separate coil is on top of each plug.

Reply to
Steve Stone

Check the notorious crank and cam sensors also

Reply to
Galen

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