25th Sep 2008, 00:14

I had a 1999 300m. I loved it till last week when I heard a tick and then a grind, and the car died. I had so many problems with this car. I had lights flickering, drivers window does not work, door lock broke, crack down the dash, sometimes just did not start.

Oh there is more; every 2 or 3 days I would have to add air in the tires and they were new. My rims leaked, and also the driver's seat heater went out.

Oh and the tick; yeah I threw a rod, so no more 300m.

I miss that car, but not all the little things that just kept adding up.

I now have a 2007 Honda Accord, let's hope for the best.

I still love the look of the 300m, but would never tell anyone to buy it.

29th Sep 2008, 20:55

Update to

12th Sep 2008, 17:26.

I went and bought an input and output speed sensor and guess what, the new parts have been sitting in my glove box and the stall has never happened again? Ya know it was raining really hard on the day this happened, do ya think maybe that had something to do with the stall/jerking?

Yeah, I forgot to mention the filling up my tires all the time, I'm not sure if I went to the gas station more to get gas or air, it was a good excuse for me to get an air compressor for my garage. Now I can fill my tires all I want:).

21st Oct 2008, 14:52

Update #2 to.

12th Sep 2008, 17:26.

Well my car starting doing the RPM rev'ing and car dying occasionally again, so I went and had a buddy put in the cam sensor. After taking off about 35 bolts and lifting up the top portion of the cover that is on top of the motor, there it was. Took all but 5 minutes to pull out and put back in. Put all the bolts back in and car is running better than it has in probably 2 years. (as I'm typing this I am knocking on wood).

Didn't get around to putting in the crankshaft sensor, but if the problem comes back I will try and replace the crankshaft sensor at that time. I am thinking the crankshaft sensor for a 1999 300m 3.5l is replaced from underneath the car, and I have to take off the starter first to get at it. Can anyone confirm this for me, just in case I need to do it?


25th Oct 2008, 13:39

I have a 2002 300m special and I have experienced many problems, tranny, timing belt and thermostat. All of these problems seems to be pretty common among these models.

The tranny wouldn't shift out of 2nd gear (limp mode) changed the output and input sensors, did not fix the problem. Had a certified Chrysler mechanic diagnose and singled the problem to the valve body within the tranny. 350 dollars for the part and mechanics quoted time for the fix is only.75 hours to fix. So to anyone who has this problem, don't let the dealerships or shops tell you that it is over 1000 fix. It is B.S.! My advice is: TRY CHANGING THE I/O SENSORS FIRST!

Although I have had several problems, I still love my 300m - overall the car has been A+ and looks stylish with a luxurious feel! GOOD LUCK TO ALL!

18th Nov 2008, 15:03

I own a 1999 Chrysler 300M, bought new. I have had the two speed sensors replaced at the Chrysler dealer. I have had a vibration problem since I owned the car. Chrysler could never find the problem. So I have lived with that.

I have 100k miles now and the check engine light comes on sometimes, then goes out after a while. I have the original battery. Dash board has two big cracks above glove box. Cracks look very precise like someone cut them with a razor. I guess the air bag is located there.

I have enjoyed the car except for the vibrations in front of the car.

21st Dec 2008, 16:14

I have a 99 300M. Can anyone tell me where the t-stat is?

28th Dec 2008, 12:46


I have a 99 300 M with 154,000 miles. No major problems yet, but could someone tell me about replacing the timing belt, and the water pump, i.e. the service interval?


17th Feb 2009, 22:34

Chrysler 300M. Battery side terminal which breeds corrosion. Replace battery CABLE. Not clean, REPLACE.

22nd Feb 2009, 14:34

Update to.

21st Oct 2008, 14:52.

4 months have passed and the car started the dying thing again. So I limped to work and decided to have it towed to my mechanic. I told him I had bought a crankshaft sensor awhile back, but never put it in. He called me and said that the crankshaft sensor was bad and he replaced it for $30 bucks. 2 days and about 200 miles later, no issues to speak of. Let's see how much longer. With this economy I don't want to buy a new car - probably cheaper to keep this going.

Also bought a set of new low profile tires. 225/45/17 I strongly dislike these, should have went with the 55's. My bad!!

30th Mar 2009, 00:29

My 99 300 is stalling. I have seen a ton of the same comments from people on the problem. Has anyone solved this? It is the same problem with random stopping and then starting with no real reasoning.

9th Apr 2009, 13:07

As for the stalling, what I did was put in a new input/output sensor and a new crankshaft sensor. Total parts right at $100 and I got the I/O sensor in, but had the crankshaft installed for $30. I choose this route before looking into a fuel pump. The symptoms seemed similar to a faulting fuel pump. This info is in some previous posts as well.

1999 -300M -136,000 miles.

12th Apr 2009, 01:23

I was given a 1999 300M after my mom bought a new car. It has always had a problem, which I am just finding out about. It starts when it wants to, and other times it has to be jumped. I was told everything that would cause this has been changed, yet the problem is still there. Any advice?


20th Apr 2009, 12:55

I've been having problems with my 99 Chrysler 300m.

The temp gauge, speedometer, and the rpm gauge don't work. Also the red alarm light stays on with the check engine light.

The automatic lights don't come on either. I have to switch to manual to see at night. I need to get some advice on what the problem is... Help!!! Yanceythepoet@yahoo.com.

28th Apr 2009, 10:05

I have had my 99 300M for 7 years, love the car and overall the maintenance isn't as bad as everyone says. It now has 176,655 miles & I feel parts especially electric parts cannot live forever. While it was under warranty one of the fan motors went bad and the compressor had a valve stuck so the AC compressor needed to be replaced. Since then I have replaced:

Cranks sensor, vehicle would not start $18.

Speed input sensor, vehicle speedometer did not work and was stuck in 2nd gear with check engine light on. $22.

Throttle positioning sensor, vehicle slipped in and out of gears, stalling issue, hard starting and had check engine light was on $29.

Just this morning while driving to work my battery light came on, then the check engine light, car went in to 2nd gear only, speedometer works however I'm leaking tranny fluid. I believe I had a trans cooler line fail and possibly a speed output sensor. We shall see!