Question about 1994 Chrysler Concorde

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Engine Misfires bad when excelerated or under load

I have a 1994 Chrysler Concorde 3.5liter V-6. It Idles smooth but then will die down and stall. When I feather the gas, it will misfire and pop. When I put it in gear it will also misfire on 2 to 4 cylinders. I have replaced EGR, Intake manifold gaskets, crank sensor, fuel filter and fuel pump module, coil pack, spark plugs and wires, and drivetrain computer. Nothing, so far, has helped. Can you help me solve this problem, PLEASE!!! E-mail me at lowelllydia@core.com

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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bibleman01
  • 334 Answers

SOURCE: 02 monte carlo, radom misfires, EGR circuit failure

Does it misfire under load like when you press on the gas peddle after slowing down then accelerate or at idle. When you say spark plug did you mean all the spark plugs?

Posted on Nov 24, 2008

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bunnydawg
  • 5158 Answers

SOURCE: 2001 Grand Caravan #4 Misfiring

if it's only one cylinder... bad spark plug wire or spark plug would be suspect.... swap the plug wires from another cyclinder... at the coil pack and plug and see if the misfire has "moved"

Robert

Posted on Jan 20, 2009

  • 66 Answers

SOURCE: replaced plugs wires coils and still eng. misfire

ok. You mentioned shampoo? meaning you cleaned the engine and compartment. And ran out of gas.
Sometimes if we wash the engine, water can hide in some spots like getting into plugs and such. If so, that plug may have been damaged. change the fuel filter as well, if you have ran out of gas.

if smell rich, well you just may be on the right track. Not enough air. Be sure to check all vacuum hose to ensure you don't have a leak somewhere that we are not catching.

Posted on May 05, 2009

  • 61 Answers

SOURCE: I have a 96 Chrysler

faulty computer
faulty wiring
excessive carbon in combustion chamber, when hot, pre-ignition occurs. try using high octane gasoline first, but wait until empty, before filling up. it will take some time before the new gaz gets to the engine as the gaz lines and pump still have the old gaz.

another possibillity is water in the gaz tank.
when cold the gaz enrichment might compensate .


Posted on Jul 19, 2009

bschilz
  • 2049 Answers

SOURCE: I have been getting a code p0406 lately algong

It's really pretty simple - it can be open when it isn't supposed to be, or it can be closed when it is supposed to be open. If it is open when it is not supposed to be open, at idle for instance, It will act like one monster vacuum leak and the engine will not idle or will idle really roughly. If it doesn't open when it is supposed to open you will probably experience a symptom of "pinging" or "knocking" since the combustion chamber temperature will be higher than normal (one of the main causes of pinging in an engine).

Posted on Sep 12, 2009

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http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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This will help.

Thanks.

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When was the last time you changed the fuel filter? when clogged, they will cause the engine to stall when stopped, or while driving. Inexpensive, if you can do it yourself, Part cost-under $15, for most cars. Won't do any harm to change it, know what I mean?

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One suggestion:
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Info:
Some of the classic symptoms, stalling at dead stops. failure to auto lock doors. poor fuel economy. Failure to go to overdrive.


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