Question about BMW Cars & Trucks
When the engine is cold it jerks the engine idles up and down until after the engine hots up then it is ok
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Posted on Jan 02, 2017
Lexus's have a complicated system of electronics that control the function of the transmission.Under normal operating conditions the transmission is controlled by the ecu and by a secondary system called a drivetrain control module. usually when a fault occurs it sends a code to the ecu and the check engine light comes on.
If this light does not come on then typically the electronic modulator is at fault and needs to be replaced.
If the check engine light comes on when the vehicle is hot i need this code to guide u further for the repair.
If u want to attempt the repair , be wary. its messy and takes time to do to do it right.
Posted on Apr 25, 2009
Probable Spark plugs have blown. I would do a good tune up and replace your fuel filter, plugs and wires, oil and oil filter, air filter. Your system builds enough fuel pressure when it's cold becuase there is technically less are in your combustion chamber when it's cold so it can build more fuel pressure to start. When it's warm there's less room to build pressure to start your motor. So do a good tune up for now and see if that works. Hope you the best!
Posted on May 20, 2009
with your a/c issue, the compressor might be faulty and not engaging and disengaging. have the a/c system level checked and recharged if necessary...if okay, then start to check the clutch in the compressor to see if it kicking it or not...maybe the low side or high side switch...as for your idle, it really didn't sound like a distributor,.....to me it sounds like you have a faulty, Idle Air Control Motor in the throttle body allowing in too little air, and when a/c is on, its just right...have them both checked,
Posted on Nov 17, 2009
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