2001 Chrysler 300 STALLING

Tiny
DDVARGE1
  • MEMBER
  • 2001 CHRYSLER 300
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 15,200 MILES
I have a 2001 chrylser 300m. The problem is after going on highway speeds and coming to a stop, rpm's drop and car stalls. It will start up right away with no problems. I have had the spark plugs replaced, a cleaner to clean out all the carbon, took the throttle body off that still had lots of carbon build up. I was told to take the EGR valve off and have that cleaned by hand and if that didn't work to replace the EGR valve. The Idle control motor was checked and is functioning properly. Does this sound right with the EGR valve?
Saturday, April 19th, 2008 AT 7:05 AM

17 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Is the check engine light on? And how was the idle air control unit tested? Usually if all else is good, no vacuum leaks. It turn out to be the IAC. All carbon was removed? And the MAF sensor is clean?
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Saturday, April 19th, 2008 AT 8:38 AM
Tiny
DDVARGE1
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Check engine light is not on. The mechanic said he checked with engine computer. MAP sensor as far as I know has not been cleaned.
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Saturday, April 19th, 2008 AT 7:19 PM
Tiny
MERLIN2021
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Well the IAC can be out of range and NOT set a code! Unplug and replug a few times, it might improve if not that where my money is, MAF in the airway can also give you this problem.
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Sunday, April 20th, 2008 AT 4:44 AM
Tiny
DDVARGE1
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On Sunday my husband pulled the Iac out and the plunger inside was filled with carbon he cleaned it out got some movement on the plunger. I have drove it for 2 days without stalling. The rpms drop down to below 5 but the car does not stall. He is going to install the new one tonight. Does this sound like we solved it?
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Tuesday, April 22nd, 2008 AT 5:51 PM
Tiny
MERLIN2021
  • MECHANIC
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Yes I think so! Replace that IAC, and you don't have any modified air filter on it do you?
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Wednesday, April 23rd, 2008 AT 2:40 AM
Tiny
DDVARGE1
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The new IAC motor was installed-still when coming to a stop it will drop below 5 and then kicks back up. Today on my way home I had to stop for a red light quick on the highway. Rpm's kicked all the way down and the car shut down. I was able to restart it and get home. I have no idea anymore. Any guesses? No aftermarket air filter or anything modified. Any suggestions?
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Wednesday, April 23rd, 2008 AT 3:42 PM
Tiny
MERLIN2021
  • MECHANIC
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I'm still thinking a vacuum leak. Get a can of spray gumout, spray the vac lines and maniflod area, when the idle changes, youve found the leak! You want the engine running and spray on the outside but do direct the stream onto the hoses, if it is a vacuum leak, the engine idle will change speed, then you have detected a leak, repair the vacuum leak and see how it runs!
Or Mass air flow sensor, or Mannifold absolute pressure sensor.
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Wednesday, April 23rd, 2008 AT 4:08 PM
Tiny
DDVARGE1
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EGR VALVE REPLACED START THE ENGINE AND RPMS STAY AT ABOUT 3 GRAND AND WON'T COME DOWN. HELP!
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Wednesday, April 23rd, 2008 AT 8:15 PM
Tiny
MERLIN2021
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Try disconnecting the throttle cable, and close thrttle by hand if nesseary, either the cable or the throttle is sticking. If all is good, the idle is controlled by the PCM and is not adjustable. I cant tell what happened when you worked on the EGR, I don't think I said anything about removing it. However if throttle isnt stuck, try removing the negative battery cable for about 20-30 mins, then reattach it. The PCM will now need to relearn all the settings, and after that it might improve your situation.
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Thursday, April 24th, 2008 AT 1:42 PM
Tiny
DDVARGE1
  • MEMBER
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Ok, my husband forgot to put the o-rings back in, he took off the egr again and reinstalled with the o-rings, it idles fine. Should we still unplug the battery for 20-30 minutes so that the pcm resets itself. Alot of people are at a lose with this one. By the map sensor where it plugs in, it looks like there is oil on the valve cover. Should that be like that? My husband took it off and tried to clean it all out. He said it looks like all the rest of the parts he's taken off. Some carbon. I don't mean to sound stupid, but if the car had a vacuum problem wouldn't you notice it all the time?
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Thursday, April 24th, 2008 AT 4:07 PM
Tiny
MERLIN2021
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It idles fine? Are you having problems with driveability still? If so do the vacuum leak test.
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Thursday, April 24th, 2008 AT 4:11 PM
Tiny
DDVARGE1
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Just coming to a stop after ging higway speeds. That is the only problem it stalls. I will have him check the vacuum lines.
I will let you know
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Thursday, April 24th, 2008 AT 4:42 PM
Tiny
DDVARGE1
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No vacuum leaks detected.
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Sunday, April 27th, 2008 AT 8:40 PM
Tiny
MERLIN2021
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I will look into tech bullitens later today, it may be transmission related, TCC may be screwed up.
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Monday, April 28th, 2008 AT 2:17 AM
Tiny
DDVARGE1
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Just to give a heads up trans was rebuilt 25,000 miles ago, along with new trans cooler and lines
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Monday, April 28th, 2008 AT 8:33 PM
Tiny
MERLIN2021
  • MECHANIC
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I think this needs a scan job on a good scanner. Check electrical connector at the tranny. Consider Chrysler shop for thier scanning capabilty.
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Tuesday, April 29th, 2008 AT 2:26 AM
Tiny
DDVARGE1
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Well believe it or not egr valve corrected the situation. The car hasn't stalled in 10 days now. The idle stays around 700 instead of 500 at a stop, runs great
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Tuesday, May 6th, 2008 AT 5:22 PM

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