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VACUUUUM LEAK/CHECK

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Old Nov 1, 2009 | 12:48 PM
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VACUUUUM LEAK/CHECK

COULD ANYONE TELL ME IF THERE IS AN EASY WAY TO CHECK TO SEE IF YOU HAVE A VACUUM LEAK
I HAVE A 1989 E-250 VAN 302 FUEL INJECTED
MY IDLE IS HIGH AND I THINK THATS THE PROBLEM
 
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Old Nov 1, 2009 | 04:02 PM
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There are a couple of hard plastic lines that dry and crack, usually running to cruise, AC, and heater controls, but I suspect yours being the throttle position sensor.
 
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Old Nov 1, 2009 | 04:52 PM
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DO YOU THINK I SHOULD REPLACE THE THROTTLE POSOTION SENSOR FIRST .
IS THERE A WAY TO CHECK IF ITS BAD

THANKS FOR YOU HELP[
 
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Old Nov 1, 2009 | 06:02 PM
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You can check it with a volt-meter, I can't recall the directions for it, but should be easy to find on the net in a search.
 
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Old Mar 1, 2012 | 07:28 PM
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i got high idle on my 95 e250 van with 351 motor
i recently replaced tps and that fixed rough idle and run fine then the idle
raised up and i replaced the idle air control it did nothing to help with idle
the shift point on trans is also not right
 
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Old Mar 3, 2012 | 02:30 PM
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Before you pop for a tps get a can of throttle body cleaner and spray the vac lines. If there's a leak you should hear it in the idle.Or use a vac pump.
 
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Old Mar 4, 2012 | 07:57 AM
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While you have the cleaner out spray to check the vacuum clean inside the throttle body. Carbon build up may be holding the blade open a bit.
 
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