Question about 2004 BMW 3 Series

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I have a 04 325ci the car twitching between 2000 and 3000 rpm i did replaced the lower intake boot ,sparks,air filter , fuel filter.Please help me what else can be Thank you

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Check to be certain that all of the hose clamps are tight and that there are no air or vacuum leaks especially between the throttle body and the MAF (mass air flow meter/sensor)

I hope that this has been of any help to you and will solve your problem.

Posted on Apr 28, 2010

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How old is the air filter? Replace if dirty. Did you adjust spark plugs to correct gap when installed?

Check sensors, particually maf sensor, may need replacing or cleaning. Maf sensor is located on the intake pipe from the air filter. Can buy the cleaner on eBay, 'maf cleaner'. The maf sensor measures air flow telling the injection how much fuel to use.

Also if there is a crank or flywheel sensor, check it's ok.

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I have a 93 nissan 300zx non turbo, my problem is: it starts up okay, it gets spark, the ptu is good, fuel pressure is good also, fuel filter is fine, cleaned and sprayed out air intakes, cleaned air...


Well is the check engine light on or have you tested for codes yet? and it sounds like it could be a sensor issue, and if you didnt replace the distributor and cap and rotor that could be an issue also

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Bogs down in low rpm when in park, nuetral, and first gear. It does not bog in when idling, in higher rpm or any gear over first, but there is still a little bit of knocking. It seems to act like a...


REPLACE SPARK WIRES THAT COULD BE MISFIRE PROBLEM, ANY TIME OLD SPARK PLUG WIRES IS REMOVED THE WIRES WILL BREAK INSIDE PLUG BOOT CAUSING SPARK PLUG NOT TO FIRE.REPLACE SPARK PLUG WIRES.CLEAN FUEL INJECTORS, CHANGE AIR FILTER,CHECK ALL VACUUM HOSES ON THE INTAKE MANIFOLD LOOKING FOR INTAKE VACUUM LEAKS.

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When the vehicle is placed in gear the rpm's drop low and it almost stalls. if i press the gas the rpm's drop even lower, if i hold the gas slightly at this ponit it will slowly begin to go and starts to...


sounds like an intake manifold gasket leak which will throw of the air fuel mixture and engine cannot account for extra air.also check(maf)(map)(tps)sensors and/or (iac)intake air control valve...hope this helps you. thanks for using fix ya please rate answer.

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1995 Contour. 2.0L. Idles really rough. When u pick the throttle up, it smooths out with an occassional miss.


look into maf and map sensors also (iac) idle air contol sensor if none of those then may have intake manifold gasket leak cuz if gasket is alowing to **** air then air/fuel mixtue is off cuz compute cant account fo the extra air added....hope this helps...may try to replace fuel filter if hasnt been done in awhile tough question wish you luck just a process of elimination.

Mar 21, 2011 | 1995 Ford Contour

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98 ford explorer running to lean, replaced fuel pump, mass air flow sensor and checked for vaccuum leaks. Any suggestions? we are at a complete loss at this point. Please help


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I have a 2002 Chevy Impala, it starts great in the morning when the engine is cold, but once the engine warms up it is very difficult to start. It cranks alot and even backfires sometimes. Also I noticed...


Engine is difficult to start when cold
  1. Check the battery condition, battery state of charge and starter motor current draw. Replace the battery if marginal and the starter motor if the current draw is beyond specification.
  2. Check the battery cable condition. Clean the battery terminals and replace corroded or damaged cables.
  3. Check the fuel system for proper operation. A fuel pump with insufficient fuel pressure or clogged injectors should be replaced.
  4. Check the engine's tune-up status. Note the tune-up specifications and check for items such as severely worn spark plugs; adjust or replace as needed. On vehicles with manually adjusted valve clearances, check for tight valves and adjust to specification.
  5. Check for a failed coolant temperature sensor, and replace if out of specification.
  6. heck the operation of the engine management systems for fuel and ignition; repair or replace failed components as necessary.
Engine is difficult to start when hot
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  2. Check for loose or deteriorated engine grounds and clean, tighten or replace as needed.
  3. Check for needed maintenance. Inspect tune-up and service related items such as spark plugs and engine oil condition, and check the operation of the engine fuel and ignition management system.

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1 Answer

Dodge ram van stalls when RPM are low


could be fuel filter clogged //fuel pump is going bad which you will need to have a pressure test done ...also is there a gas odor ? could be rusted lines could be air filter ....messing with the timing you should not move to much ...if you have brake /carb choke cleaner try spraying around the intake manifold to see if any change in performance such as lowering the rpm's which would mean a gasket leak are all the Vacuum lines good and not dry-rotted try bending them ans well as spraying with a squirt bottle of water on the plug wires to see if an Arc is present a bad plug wire ..these are a few areas in which i would consider 1st ..hope this helps you

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