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Old 04-12-2011, 07:25 AM
modelageek modelageek is offline
Ford Ranger Driver
 
Join Date: Jan 2009
Posts: 6,268
Default Re: Can not get little truck pass 35MPH

a 1994 ranger fuel pressure should be koeo=35-45, koer 35-45, koer with vacuum line removed from FPR 25-35.
you also want to get to proper psi Koeo with in a few cycles. After the truck is shut off the pressure should not drop more than 8psi in 5 minutes

In 1998+ the FPR was moved to the tank and the returned line was removed.....on those trucks the PSI is 65 plus or minus

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Quote:
Originally Posted by 713cableman View Post
Changed out pump. PSI is now 45. Seen spec on this web page for that engine and it said 30 to 40.Still wasn't the trouble. Found that the wire harness to the front coil was shorting out when it was under a load. Don't understand how or why it would not show up if the engine was running with out aload.
for future members removing the bed is by far the best way to install a fuel pump for the average DIY. You get to test the truck out before reinstalling the bed......the hard part is wrestling off the 6 rusted bolts........I replace them with hex bolts that I get at boltdepot.com for $3 each. also when the bed is off it is a good time to check replace hangers and shackles on the rear leafspring(depending on where the ranger has spent most of its life)................I have a write up if someone wants it....
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2004 Ext Cab, 4WD, 4.0, Auto, 154k. (4.0 engine is out of a 2009 Ranger w/96k) ( as of 7/1/2017)

2004 Ranger, Ext Cab, 2WD, 3.0, 5 speed , 4WABS, crank windows, no cruise, Edge 116k.(6/5,2014) (SOLD).
1999 Ford Ranger, Reg Cab, 2.5, 5 speed, 2WD, no AC, 150k (SOLD).
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