Question about 1988 Dodge B250
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Posted on Jan 02, 2017
SOURCE: 1996 Dodge Ram 1500 won't idle
First thing I'd do is remove idle speed motor, or idle air control, same thing, different names. remove wire connector, remove motor, and get some throttle body spray cleaner, and spray shaft & tip of motor well & clean it all up, as well as spray in to port (hole) that it came out of. Re-install & try that. They are pretty common problem. If it cure it for a while, then starts to act up again, replace it, and clean port well before installing new one. here's a link to give you an idea of what your looking for, click on pictures to expand them.
Posted on Jan 18, 2009
There is a temp. sensor on the exhaust manifold that I just switched out on car that done the same thing it would start when cold but once it was hot and you killed the car it would not start back. When this goes bad its throwing the wrong signal to the computer that it is too hot and allowing it not to crank. This sensor was on the left side of the engine if your facing the car from the front. Also It can be tested with a multimeter to see if it is bad.
Posted on May 22, 2009
Tips for a great answer:
Engine stalls or RPM
fluctuates at idle up and down or dies near idle.
This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve but always run a OBD2 fault code as well as the cleaning procedure. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control
Oct 15, 2012 | 1996 Mercedes-Benz C-Class
Jul 19, 2012 | 2001 Dodge Durango
Here are the most common causes of idle surge, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake
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