Question about 1999 Dodge Grand Caravan

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1999 Dodge grand Caravan 3L Often when I start the engine it will start running very roughly. I smell fuel that it isn?t burning and the lights and fan will dim in sync with the engine?s rpms going up and down. When the engine has been running for a while it goes away only to return sometimes from a cold start... and we repeat the whole thing again. I have already replaced the Air Idle Motor so that?s not the problem. This has stumped every mechanic I?ve taken it to. Any suggestions out there?

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  • Dodge Master
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This is commonly caused by a dirty throttle valve and idle speed control valve, have them cleaned.

Posted on May 03, 2017

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 96 caravan air bag light stays on

clock spring in steering column. could be recall item

Posted on Jul 30, 2008

motor1258
  • 6674 Answers

SOURCE: 2002 caravan, heater problems

That was a common complaint a few years back, due to the fact that the heater core is a little too much higher than the engine, which requires that extra push it gets when engine RPM's increase. One thing I did do on my Caravan was remove my hoses to the heater core, and use a small external pump with hoses to circulate C.L.R. through my core for a while, then let it sit with CLR in the core overnight.Next day I circulated it through again, both ways by reversing hoses, and then re-attached hoses, bled air out of system, and notice quite an improvement in heat at idle. Once cleaned out, the heater core allowed coolant flow through it better at idle. If your stumped by explanation, take it to an automotive shop, or a Rad shop, and get a quote on flushing that core out for you. I recommend the CLR, but it might be too time consuming for you , but a flush will probably show some noticeable improvement.

Posted on Nov 23, 2008

  • 26 Answers

SOURCE: 2003 Dodge Grand Caravan starts idles 3 sec then just dies...

Fuel system..Filter or pump..maybe clogged
Try fuel line cleaner..make sure the tank is 3/4 full.
this may help.

Posted on Oct 01, 2009

kb8dns
  • 494 Answers

SOURCE: 2006 Dodge Gr. Caravan. Loud humming noise upon

Misalignment of the belt, incorrect belt, worn or loose tensioner, Too tight of an adjustment (many service centers do this on purpose so when the belt breaks in it becomes properly adjusted, I do not believe in this philosophy), The belt is actually one long belt called a serpentine belt.....

Posted on Feb 21, 2010

  • 1 Answer

SOURCE: heater lights flashing

Turn it on, Put the heater on high. While the heater is on high hold down the rear wiper, rear washer and recycle air buttons (all at the same time) for 5 seconds. It will reset your heater computer.

Posted on Feb 25, 2010

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1 Answer

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My first questions would be - is the check engine light on and is it running rough ?
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check under hood while it is running to see if there is gasoline dripping anywhere. You need to find it before it catches on fire. Use a bright flashlight and look at the fuel injectors and loser intake manifold as injector o-ring could be leaking. DO NOT use a lighter. Sorry, but I had to stress this. Gasoline does not burn. The fumes burn.

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