Regulator on fuel rail

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06-12-2011, 07:59 AM

#11

RibeiroBJJ

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Quote:

Originally Posted by 1badblazer

Well I put a new pump in today and fixed my problem. I didn't ever check fuel pressure because it got worse were it would turn just around 3k at WOT and the fuel pump was whining bad and changing pitches. It just didn't sound good. Now it is nice and quiet and working like it should. I wish I did own a gauge to check the fuel pressure to see what it was pumping. I'm just glad it is fixed and it sure does run better.

Good to hear you got it fixed

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06-14-2011, 03:56 PM

#12

Huntingman2706217

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for those looking to swap in electric fans... ive seen several auction on ebay go for $100 of used ones from the camaros and firebirds... came across these Dormans on ebay for $150 shipped with a one year warranty... brand new so you dont have to worry about dirt road stains or any of that mess... worth the little extra money i think... heres the link...

http://cgi.ebay.com/ebaymotors/ws/eB...=STRK:MEWNX:IT

and for the far future where the link no longer works search "620-634" and then make it show the "lowest +shipping" price...

Also seems blackbear is the cheapest when it comes to the harness setup to run it off your ECM... otherwise thermostat kits can be had off ebay for less than $40 with the fan install (zip ties) kit...

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06-18-2011, 11:14 AM

#13

ForcedTQ

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Quote:

Originally Posted by Mangled03gmc

Yes you need a vac lined hooked up, other wise it will not work correctly based on engine rpm and all..

OP, just so you understand the operating premise of that regulator:

Wrong. It operates on Vacuum, not based on engine rpm. The regulator effectively maintains fuel pressure at the rail subtracting rail pressure for the effect that manifold vacuum will have on the fuel, which would allow it to flow more than intended if the vac. line to the regulator were not hooked up.
It is not a function of rpm, as you can have high rpm and be in a vacuum situation.