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  #1  
Old 11-28-2007, 11:21 PM
mercad96 mercad96 is offline
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loss of power help

hi everyone i have a major problem i have a 1997 ford f 450 2 wheel drive. i have barly any power that empty the truck has a hard time going over 45 mph. this has occured over the past year or so i think i have owned the truck for over 4 years and i am a fanatic with maintnance. i have changed the fuel pump fuel filter air filter put a scanner on it and done all the checks a buz test for the injectiors and the complete test while running multiple times. the truck does not show any codes. and i am completly lost if anyone can help me i would greatly appreciate it thanks
pete
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Old 11-28-2007, 11:37 PM
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the catylitic converters get pretty stopped up and cut down on power... but change the fuel filter... and drain the water... and maybe you just got some bad fuel... i have done this 2 times in the past month... idk i was just throwing some suggestions out there...
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Old 11-29-2007, 11:22 AM
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Check the EBPV on the turbo to see if it is working.
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Old 11-29-2007, 12:25 PM
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Neal 97 250 Neal 97 250 is offline
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Make sure the ebpv is not stuck closed. Unplug it and verify it is open.
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Old 11-29-2007, 11:03 PM
mercad96 mercad96 is offline
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do u guys know where the ebpv is and the best way to check it i disconnected the mapp sensor i think it was ab ove the air box and it runs better with a check engine light
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Old 11-30-2007, 03:04 PM
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Quote:
Originally Posted by mercad96
do u guys know where the ebpv is and the best way to check it i disconnected the mapp sensor i think it was ab ove the air box and it runs better with a check engine light
Pretty sure you need a new MAP sensor. and here is the connector of the EBPV.
Click the image to open in full size.
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Old 11-30-2007, 04:25 PM
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Welcome to FTE, I agree with ^^Jose^^. Look for a hole or crack in the rubber line going to the MAP sensor too or boost leaks from the turbo. The orange boots going to the intake manifolds are a known problem. If you can Check the actual boost psi, you should be getting around 15-18 psi or more. Look at the exhaust side of the turbo too. Black soot around any of the exhaust connections would indicate a leak.
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Old 11-30-2007, 04:25 PM
 
 
 
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