fpr???
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Senior User
Joined: Apr 2004
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From: nj
fpr???
hey guys my 89 with the 5.0 has been sitting for months. among other problems now i cannot get it to start. first the inlinefuel pump was seized and of course i replaced the filter i have spark all around but just cannot get her to turn over. i know it has a rather large vaccum leak as well due to the fact that the intake needs to be milled. what i really need to know is there a way to manually test the fuel pressure regulator with vaccum and air? i already took it off the fuel rails and have it in my hands
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Joined: Nov 2007
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From: Denver Metro Area, CO
Or, are you trying to say the engine turns but won't start? If that is your intention, you would help yourself by providing clear information up front, thank you.
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Senior User
Joined: Apr 2004
Posts: 119
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From: nj
This is confusing - what does spark & fuel have to do with turning over? Turning over involves the battery, starter solenoid and starter motor and has nothing to do with fuel & spark.
Or, are you trying to say the engine turns but won't start? If that is your intention, you would help yourself by providing clear information up front, thank you.
Or, are you trying to say the engine turns but won't start? If that is your intention, you would help yourself by providing clear information up front, thank you.
stop busting my chops. can u tell me how to test the fpr or not?
Last edited by SteveBricks; Jul 23, 2012 at 07:32 PM. Reason: Removed comment
FTE Leadership Emeritus
Joined: Jan 2003
Posts: 161,999
Likes: 75
From: 3rd Rock
This type of response will get your chops busted, if a MOD busts yours you will know it !
Around FTE it is always good to initially define your problems with complete and understanding communications.
Like clear sentences....and of course NEVER name calling of any type!
YOU have been on the site long enough to know how to interact with other members....now lets get on... with getting you truck running.
Around FTE it is always good to initially define your problems with complete and understanding communications.
Like clear sentences....and of course NEVER name calling of any type!
YOU have been on the site long enough to know how to interact with other members....now lets get on... with getting you truck running.
Last edited by IB Tim; Jul 23, 2012 at 06:35 AM.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Probably.. but you would need to build a special jig to put pressure behind it and some way of applying the correct amount of vacuum and then have gauges to measure the change in pressure resulting from various vacuum levels. Or you could just put it back on the truck and put a fuel pressure gauge on the fuel rail and test the whole fuel system in one shot. For the most part as long as you don't get fuel out the vacuum nipple then there's probably nothing wrong with the regulator, the pumps and in your case the dual function resovoir are the usual sources of low fuel pressure.
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