Fuel Regulator ( Clean Or Replace)
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From: Marsville Canada
Fuel Regulator ( Clean Or Replace)
Hello, 90 Ranger 2.9L 2wd . Just replaced one fuel injector and cleaned the rest. The fuel regulator looks like it also needs cleaning or replacing, due to sitting for about 4 months. Can this be cleaned or should it be replace. Any tips on either procedure, always welcomed. (According to the manual always replace gasket and gas "o" rings apon removal).
Thanks Craig
Thanks Craig
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Senior User
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From: Marsville Canada
Hopefully it can be cleaned! A new fuel regulator is aprox. $200.00 canadian. What kind of cleaner? Plus there looks like there is some sort of vacume attachment, can it be submirged in cleaners???
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From: SoCal
Key on/engine off the pressure should be 40 PSI & yes you do need to buy or borrow a gauge to check it. If the truck is running good, why are you worried about this??????? If you do want to check the pressure, get a Haynes manual for 15 bucks.
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Senior User
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From: Marsville Canada
The truck has a small rumble (miss) at idle aprox. 100 rpms. Would like to smooth it out completly. Will take your advice and check fuel pressure first. Sorry not at the garage to check my Haynes. I'll stop on the way home to have a friend check pressure.
Thanks for the advice
Thanks for the advice
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From: SoCal
Have you taken 2 minutes to pull the trouble codes? You might get a code that would explain the rough idle. Could'nt hurt to clean the idle air control valve & throttle body. And check for any vacuum leaks. BTW you can swap in a throttle body from an 87 Ranger if you want to pick up a bit more HP.
Last edited by 87 XLT; Apr 5, 2004 at 06:07 PM.
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From: Marsville Canada
Yes have checked the codes, they come up clean "11". The throttle body have been cleaned with a generic cleaner, to the eye the butterfly looks clean no residue or build up. The vacuum lines look in good shape, no cracks all a tight fit. Have also ran injector cleaner (Lucas) twice, in a short period. Has been recently tuned-up, plus a new "O2" sensor to clean up the previous outstanding codes. The reason I believe fuel regulator, seemed to be dirty like the injectors. The in line fuel filter was changed about 8 months ago, but the truck has sat for aprox. 4 months. I'm only a backyard mech. of many years and this is my first ford Truck, so for the most part everything is a little foreign. I still think testing fuel pressure is next step to this minor problem. While the truck is running maybe a small fluctuation in fuel pressure if dirty??
Thanks for the hints and suggestions always helpful.
Thanks for the hints and suggestions always helpful.
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Postmaster
Joined: Oct 2003
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From: SoCal
Sounds like you've pretty much covered all the bases. Glad to hear that you pulled the codes, it seems like some guys would rather have a root canal then pull codes, go figure. Checking fuel pressure with engine running, cleaning the IAC & testing with a vacuum gauge would be the way to go at this point. The vacuum gauge will tell you if all 6 cylinders are doing an equal amount of the work. My 87 2.9 with 221 K pulls a nice steady 19 inches of vacuum. I think you are going to like that 2.9, they seem to run forever. Looks like mine wont have any problem getting to 300 K miles at the rate it's going.
