help me diagnose low power problem.
Freshman User
Joined: May 2007
Posts: 32
Likes: 0
Hi! O.K. this is my first post on this forum, but your problem sure caught my eye. Before anything else, try the MAP sensor! That's what fixed my similar problem (after I went through many of the other things you mention!). It is the sensor mounted on the A/C blower housing, has an air tube and a wire harness going to it. It's fastened with 2 screws. Just swap it out with one from a friends truck, and see if your problem moves to HIS truck! If it does, a new sensor is about $85 at auto parts. Takes only couple minutes to try it, and youv'e nothing to lose (if youv'e got a good friend). I'd like to hear what happens if you try it!!
More Turbo
Joined: Dec 2005
Posts: 669
Likes: 0
From: Idaho City Idaho
I like that if it moves to your friends truck it wont cost you anything, but yoru friend about 85 bucks, Tell him you will do ali the work lol
Fencer welcome to the form its a great place
Keith
Fencer welcome to the form its a great place
Keith
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Originally Posted by mshostek
What's the Hutch Mod? How hrd is it to drop the tank? Any on-line instructions?
http://rides.webshots.com/photo/1032...34160182dTEHvP
To this:
http://rides.webshots.com/photo/1032...34160182sZLVfG
And this is the whole webshots album:
http://rides.webshots.com/album/32614313yLKyrS
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Mountain Pass
Joined: Aug 2005
Posts: 212
Likes: 0
From: Brighton, CO
haven’t checked the map sensor yet, but i did get fuel pressure readings at load.
no towing, these are just WOT pulls from a stop, and WOT runs on the road. (while trying not to get arrested).
<O
</O
as before, idle and cruising im about 57-58psi. when i punch it it goes to about 48-50 psi.
<O</Ois that normal/within spec?<O</O
no towing, these are just WOT pulls from a stop, and WOT runs on the road. (while trying not to get arrested).
<O
</Oas before, idle and cruising im about 57-58psi. when i punch it it goes to about 48-50 psi.
<O
</Ois that normal/within spec?<O</O
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
No, you are supposed to be able to have full fuel pressure at all times. Your fuel delivery has too low of a volume.
It's good enough to maintain the proper pressure, but as soon as fuel demand goes up, like during a WOT pull up a hill, for whatever reason it cannot keep up.
It's good enough to maintain the proper pressure, but as soon as fuel demand goes up, like during a WOT pull up a hill, for whatever reason it cannot keep up.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Originally Posted by SBChero
should i be looking @ a new pump? .
IMO what the real problem in the design is the screen inside the pump gets clogged and needs to be cleaned out. Easier said than done.
Whatever you do, make sure that there is a filter between the fuel pump and the pickup in the tank that is larger than the little tiny thing that is inside the mixing chamber.
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Mountain Pass
Joined: Aug 2005
Posts: 212
Likes: 0
From: Brighton, CO
alrighty, i just did the intank mods, and took it for a run. no change in fuel pressure but the gauge did look more solid than before. there was little to no wavering of the needle. which hopefully means that i got some air out of the fuel.
but the pressure still drops about 10 psi when i punch it.
anyway to test the pump? good recommendations for a replacement? stock or upgrade?
but the pressure still drops about 10 psi when i punch it.
anyway to test the pump? good recommendations for a replacement? stock or upgrade?
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