Strange problems only when blowing cold
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Joined: Sep 2007
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Strange problems only when blowing cold
Hi everyone
I have a 99 F150 5.4l 2wheel drive with a crazy problem. When I'm driving and only when the A/C is on my electrical system goes haywire. It feel like a total loss of power rpm gauge goes crazy, theft light starts flashing and gives a 16 code, sometimes speedodemeter acts up, will through the truck out of overdrive and cruise control, everything will still be on but it acts like it has an electrical short. Have brought it to dealeship and numerous mechanical shops to no avail.
Only happens when A/C is turned on can drive truck all week with it off and no problem. sometimes happens right away sometimes takes a while, and problem is getting worse. have changed iginition switch, alternator, tps sensor and still problem persits. any clue?
I have a 99 F150 5.4l 2wheel drive with a crazy problem. When I'm driving and only when the A/C is on my electrical system goes haywire. It feel like a total loss of power rpm gauge goes crazy, theft light starts flashing and gives a 16 code, sometimes speedodemeter acts up, will through the truck out of overdrive and cruise control, everything will still be on but it acts like it has an electrical short. Have brought it to dealeship and numerous mechanical shops to no avail.
Only happens when A/C is turned on can drive truck all week with it off and no problem. sometimes happens right away sometimes takes a while, and problem is getting worse. have changed iginition switch, alternator, tps sensor and still problem persits. any clue?
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Welcome to the site 
Maybe head to the Truck forum that relates to your truck.
The 1997-2003 Truck forum
or
the FTE electrical forum
This forum is for General automotive topics...or those that don;t already have their own forum.
Maybe head to the Truck forum that relates to your truck.
The 1997-2003 Truck forum
or
the FTE electrical forum
This forum is for General automotive topics...or those that don;t already have their own forum.
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