Car studders when accelerating, also RPM needle drops and car shakes then needle goes back up

Tiny
JAMALGRAND1
  • MEMBER
  • 2000 CHRYSLER TOWN AND COUNTRY
  • 3.3L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 145,200 MILES
When I start the car and sit for a minute and let it warm up with the heat on, the RPM needle drops and the lights dim and the car shudders, it feels as if it wants to turn off. Then when I begin to try to accelerate it hesitates. And sometimes studders first. I've recently had a transmission fluid exchange and the fuel injection system cleaned. I've taken it to a repair shop and they say nothing is wrong with the transmission. I'm just nervous. Some people have told me it's the speed sensor, I'm not sure myself as I'm only 18.
Friday, November 22nd, 2013 AT 10:43 PM

6 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Depending on the temp outside it is probably your a/c compressor kicking on making the rpm drop. The a/c runs until it gets a certain temp outside. Try cleaning your throttle plate on both sides and iac hole. This is covered on site here under engines/throttle actuator- how to repair. It's a step by step including pictures.
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Saturday, November 23rd, 2013 AT 5:56 AM
Tiny
JAMALGRAND1
  • MEMBER
  • 12 POSTS
I have another small question, I got new spark plugs and wires, and a new air filter. But what other key components needs to be changed to last my car for a little while longer? Basically, I guess I'm asking what is the list of things that needs to be serviced or replaced during a tune up? Like I said I already got the new spark plugs and wires and air filter but what other necessary components need to be taken care of? Thank you.
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Wednesday, January 15th, 2014 AT 4:06 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Air and fuel filters and when was last time oil and filter were changed? Belt and tensioner should be replaced every 60K that's about it.
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Wednesday, January 15th, 2014 AT 4:09 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Have a trans guy properly diagnos this, it doesn't sound like replacing sensor and or the tcm which will have to be programmed will fix it. It sounds morel like a clutch pak problem or valve body problem to me.
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Monday, July 28th, 2014 AT 6:32 AM
Tiny
JAMALGRAND1
  • MEMBER
  • 12 POSTS
And this means a new or rebuilt trans?
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Monday, July 28th, 2014 AT 1:10 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Could be untilit 's diagnosed can't give a definitive answer
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Monday, July 28th, 2014 AT 3:31 PM

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