Question about 1997 Dodge Avenger

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Engine stuttering My 97 dodge avenger, 2.5L V6, is having some issues. I am not sure if the problem exists within my engine or transmission. The issues i have are as follows: When the car is in park or neutral the engine idles fine with hardly any stutter or hesitation. If I rev the engine the it feels like the engine is choking for a half second, when it rises above 2000 rpm it runs smooth. When I am in drive and have the brakes engaged at a stop light the engine stutters and sounds like its choking. The rpm drops every stutter but never enough to stall the car. When i disengage the brake and let the car coast the stuttering is much less prevalent. Again, as listed above, when I push the gas to accelerate the initial stutter occurs but it goes away above 2500 to 3000 rpm. When I am driving down a city street or highway and give gently accelerate without dropping into a lower gear I experience the same problem until the car down shifts and the engine is running above 2500 to 3000 rpm. Wet weather increases the severity of the stuttering. I am not sure if this is related or not but 2 months ago when I was getting on to the interstate the engine started rattling (more than just stuttering), it was making a loud noise, and the alignment was completely off. I exited about 5 miles down the road to a gas station and turned the car off. I let it sit about 5 min, made sure the tires had correct pressure, kicked off all the snow build up in the wheel wells, and looked under the hood to see if anything was knocked loose, but everything seemed fine. When i started it back and drove away, the typical engine stuttering was there but the alignment was back on track and both the rattling and noise was gone. That was the first and only time that happened. _________ About the car and what has recently been done: This problem has been progressively been getting worse over the past 3 months. Two weeks ago the "check engine" light popped on for a few days, then disappeared, and yesterday it went back on. The is a road warrior, it has 175K miles, (majority highway commuting). Within the past 36 months I have had both control arms, cv joints, tie rods, brakes/rotors, and harmonic tuner replaced. 4 months ago (just before the problem started occurring) I had the last control arm replaced, the repair shop didn't have an alignment device and said that I would need to get the car re-aligned if it needed it; I didn't get it aligned because it drove straight as an arrow. __________ If my babble makes any sense and you have an idea as to what the problem may be your help would be greatly appreciated. Thank you

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Have you replaced your O2 censor yet? or changed your air filter lately. I know our avenger is pretty picky we had a dirty air filter once and it seemed like the O2 censor went out because it kept trying to shut off when the idle was lower. a new air filter did a bit for it then we got a censor reader that you plug into the brain box of the car or the cigarette lighter and it told us the O2 was out and our car was doing the low idle thing. after we fixed it no problems.

Posted on Jun 09, 2009


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SOURCE: where is the cam sensor on a dodge stratus 3.0l v6

Manifold Absolute Pressure sensor.....located on your intake manifold.

Posted on Mar 05, 2009

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