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Re: no check engine light on runs rough while in gear
Plug Mis-firing (firing-but not adequately) no light and no fire.
Causes: Spark plug bad, spark plug wire leaking.
If you can pull the spark plugs - and you find that one of them is wet or very dirty - compared to the others....the you have the wire/plug source identified.
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engine light flashes ????
Your best bet , take it to a qaulified repair shop , right now , damage the catalytic converter is happening . Flashing check engine light CarMD
CarGurusAug 7, 2014 - 2005 Chrysler 300 2.7L throttle body Control warning light or "RED ...bolt starts flashing and the car gets stuck in limp mode or second gear.Missing: p
Chrysler 300 PCM/TCM Software Updates Will Address Shifting Problems. ... If you experience rough shift and/or shuddering during gear shifting, software ... Car would not go over 20 mph and check engine light along with ABS/BAP light ... Once he put the new battery in the car ran fine for a while and the problems all cam ...Missing: p
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Check NHTSA chrysler extended the warranty on fuel tanks. ...Any one knows how can I put a used ecm in my 2005 300 do I need to buy new ... How to view fault codes Chyrsler 300 HTWL - Duration: 1:22. by Leo P 28,908 views ... Rough Run, Stumble or Stall, Check Engine Light-How To Check Vehicle ...Missing: blink
Are your rpm's low when sitting at a stop light and vehicle warmed up? You could check your TPS (Throttle position sensor) or maybe your egr is plugging up, or one of your plugs or wires could have gone bad, maybe the coil on one of the wires is bad. You really need to plug a code reader into the ECU and see if there is a code being thrown. And NO, all codes will not cause the engine light to come on.
A properly-operating engine should run smoothly and without excess noise. If your engine starts operating in a manner that gives you the perception of "running rough", it is likely due to a handful of common causes. A mechanic would investigate these common causes first in order to rule out a simple explanation for the engine's unsatisfactory operation.
The common causes for rough running in an engine are:
There are several reasons why the vehicle could be rough idling. If no check engine light is on and the vehicle feels like it's idling rough when you put it into gear. The transmission mount may be worn out which cause the vehicle to feel like it has a rough idle. Definitely at minimum you will feel the vibration when sitting in the vehicle.
You have a blown head gasket, it runs rough because the coolant is leaking into the engine, and the water gushing out when you fill the radiator is a dead give away.
I have a 93 escort and it lost power every once in a while and ran rough at other times. The solution was to replace the oxygen sensor. It has run excellant for the last 45,000 miles now.
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