Question about 1995 Dodge Ram

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Sluggish on acceleration sounds like fan is running

Engine sounds louder than normal as if the fan is running or air is sucking. has now power what so ever. replaced fan clutch already you can hear the fan clutch disengage but still hear air rushing under hood.

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  • jbalsavage Oct 01, 2009

    I found the problem. It is back by the oil pressure sensor. it is a vac line with a red clip on it. It looks like the wires arc because there is obvious melting of the plastic vacume by the red clip. do you know what this is called?

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Is your engine turbo charged?
Sounds like you have an air leak on 'induction' side.
If it's turbo charged, you have a leak or split pipe somewhere.
Hope this helps

Posted on Sep 30, 2009

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Posted on Jan 02, 2017

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How to Check? The MAP has three electrical pins, one for 12 volts (or 5 volts) reference, one for ground and the third (the middle one generally) is the 'signal' output. Put a voltmeter positive connector on the 'signal' pin of the connected socket (back probe by inserting a bit of wire). Apply suction to the vacuum input, even sucking on it with your mouth, should result in a measurable voltage output. At normal air pressure (open throttle) the voltage seen should be 0 volts. As vacuum is applied the voltage output should change to about 5 volts (throttle closed at idle). If no transition seen the MAP is faulty.

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