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why would this happen?

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Old Jan 21, 2007 | 04:49 AM
  #1  
effer's Avatar
effer
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why would this happen?

Hi all,first time here. I have a question about my 1991 F-250. Bought the truck in September and don't know alot about them so I am looking for advice with this problem? The truck,wants to stall and sometimes does if you give it to much gas,esspecially up hills ? It is a 5.8 2wd if that helps. I have so far had the fuel filter and the battery changed, this is a new one for me and all I have to diagnose it is the haynes manual. Any help would be appreciated.
 
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Old Jan 21, 2007 | 04:52 AM
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taisa899
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when's the last time you did a tune up on it? Also check your TPS voltage



Jim
 
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Old Jan 21, 2007 | 05:02 AM
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todd31277
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fuel pressure test wouldn't hurt either
 
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Old Jan 21, 2007 | 07:23 AM
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subford
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From: Easton,Ks
Originally Posted by taisa899
Also check your TPS voltage
Jim
Use an analog voltmeter, not a DVM and watch the needle while testing the TPS. Make sure it moves across the scale smooth and steady from 0.95 to 4.9 volts as you slowly open the throttle from closed to open.

Also check for vacuum leaks and do that fuel pressure check with pin #6 of the DLC (test connector) grounded and the key on with the engine not running. Make sure it holds pressure after you turn the key off.
 
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Old Jan 26, 2007 | 04:35 AM
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thanks for the great advice, I am going to get on this!
 
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Old Jan 26, 2007 | 09:49 AM
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95Ford4x4
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how many miles on the truck?? wouldn't a clogged cat also be a problem?? i know that has caused problems before for me. fuel pump could be bad or clogged.
 
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