Question about 1992 Ford Ranger

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1992 Ford Ranger 3.0L, AT, AC.

The problem started out slow, gradual power loss, developing into rough running at speed, back fires and stalls, bucks and snorts, engine light comes on and loss of speed and power, if I kick it down it kicks in and seems to straighten out and the engine light goes out, also rough idle. This truck was run on E-85 for many years and it ran very well on it. Now am running regular gas. Replaced Oxegen sensers thinking that might be it. Seemed to help at first but when I took the truck out for the reset drive it felt like it was going to have to be left by the road side.

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  • Les Karolyi May 11, 2010

    Are you noticing any odd colours in the exhaust (white or blue) when the truck warms up?

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6 Suggested Answers

ilragatzzo78
  • 241 Answers

SOURCE: '97 Ford Ranger-Please Help!

IT LOOKS LIKE YOUR FUEL PUMP IS GOING BAD

Posted on May 29, 2008


emissionwiz
  • 60667 Answers

SOURCE: engine runs rough at certain speeds 3.0 v6 flex-fuel 1999 ranger

Check and see if the EGR valve is leaking, to check this spray water on it at idle, if the water steams off the valve is leaking and is the source of your problem, also are you sure you hooked the new DPFE sensor up right? re-check it..

Posted on Nov 23, 2008

  • 21 Answers

SOURCE: truck runs rough

Sounds like one of your chambers isn't firing. Run your car for a few minutes, shut it off then pull your plugs one at a time and see if one of them is wet. Might just need a new plug.

Posted on Nov 28, 2008

batviper
  • 120 Answers

SOURCE: HOW TO INSTALL CAM SENSER ON 1993 FORD RANGER 4.0

its right behind the intake manifold. its a B*&^h to get off but you need a special tool you can get a most auto part stores. you have to make sure your #1 piston is TDC on your compression stroke. then drop in your sensor, align it to what your specs say

Posted on Nov 18, 2009

outdoorsman5
  • 631 Answers

SOURCE: loss of power on 1998 ford powerstroke 7.3

Generally the computer is reading a problem with the fuel pressure being to high or to low. The ICP is one problem it could be and you changed it. The other could be Fuel pressure regulator control solenoid or problems with the injector (s).

Posted on Nov 25, 2009

Testimonial: "thanks alot, this pretty much confirmed what i thought. someone befor me put an elec. fuel pump and straight wired it to the ign. thanks."

  • 4331 Answers

SOURCE: Ford E-350 2001 V-10 gas.

Check your fuel vapor recovery system, your van has unusual set up, and the effect is RAW fuel gets purged, rather than vapor.
The dead giveaway test is does the issue happen on light acceleration? Does it stop if you let off the throttle? Can you accelerate harder and "get past" the issue?

Posted on Dec 12, 2010

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