Two fuel pumps in 1988 STX - Ranger-Forums - The Ultimate Ford Ranger Resource
Ford Ranger Forum - Forums for Ford Ranger enthusiast!

Go Back   Ranger-Forums - The Ultimate Ford Ranger Resource Arrow Ranger-Forums Technical Forum Arrow General Technical & Electrical

General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

LinkBack Thread Tools Search this Thread
Old 05-29-2012
Thread Starter

I am: Kevin Eicher
Join Date: Jan 2011
Location: San antonio, texas
Vehicle: 1995 Raner 2.3
Posts: 12
Total Props: 0
Two fuel pumps in 1988 STX

My son is working on a 1988 STX Ranger. We discovered it has two fuel pumps. The one in the tank is described in the Haynes manual for 1985-1988 models as a low pressure pump and the one bolted on the frame is called the high pressure pump.

The "typical" wiring diagram shown for the 2.9 liter does not have any reference to the two fuel pumps. Is the second "high" pressure pump wired in the same fashion as the "low" pressure pump? We finally got the low pressure pump working, but not sure if the second high pressure pump is. The truck runs and idles, but we haven't driven it yet.
Reply With Quote
+ 0 -
Old 08-01-2013
I am: Mike Vidan
Join Date: Jul 2013
Location: Savannah, GA
Vehicle: Ford Ranger
Posts: 3
Total Props: 0
Why does no one answer these questions?

Is there a better forum where you can actually get information?
Reply With Quote
+ 0 -
Old 08-04-2013
I am: Robert Matzinger
Join Date: Aug 2008
Location: Taylor, Michigan
Vehicle: 2008 FS4 Ranger
Posts: 96
Total Props: 0
Apparently no one is familar with the "two pumps."

There are other forums where there may be someone who is.
Reply With Quote
+ 0 -
Old 01-15-2014
I am: Sean Lyddy
Join Date: Jan 2014
Location: Monson
Vehicle: 1988 Ford Ranger
Drive Type: 4x4
Engine: 2.9
Posts: 2
Total Props: 0
Hey i am a new member but i think i can help u. If it came with two pumps it def needs two pumps. to quickly check if both pumps are working put a high pressure fuel gauge on the fuel rail. unplug high pressure pump and start the truck, if it runs on the low pressure pump, have your son plug in the high pressure pump while u watch the gauge on the fuel should jump up a bit then stable out... it works then!!!!
Reply With Quote
+ 0 -

Similar Threads
Thread Thread Starter Forum Replies Last Post
1988 Ranger Fuel Pump or Fuel Filter? TangoKilo SOHC - 2.3L & 2.5L Lima Engines 2 10-21-2014 07:49 PM
Power but no fuel pressure after 3 new pumps narboleda General Technical & Electrical 2 09-11-2011 07:49 AM
2 fuel pumps, in-tank bad? how do u know? ripley12 General Technical & Electrical 1 11-05-2008 09:55 PM
3 Dead Fuel Pumps My91Ranger 8-Cylinder Tech 9 07-16-2008 10:32 AM
fuel pumps.... lifted97ranger 4.0L OHV & SOHC V6 Tech 4 12-06-2006 07:26 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -6. The time now is 02:04 AM.