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Acceleration problems

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Old 08-19-2004, 11:33 PM
FTK560 FTK560 is offline
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Exclamation Acceleration problems

This is my second ford ranger, I just got a 1988 Ranger 2.9 auto for my wife. The problem I'm having is a bog down in mid acceleration. If you push harder on the throttle it picks up and runs fine. It doesn't miss it just bogs down. It does this on take off at times and at a steady cruising speed, it just comes out of nowhere and bogs down. I've changed the coolant temperature sensor, air filter, fuel filter, cleaned the throttle body, and changed plugs. There is no engine light coming on, and the fuel pressure is fine. I have no idea what to look for next. Please help me with some ideas. Thanks in advance.
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Old 08-20-2004, 01:43 PM
Vin 95 Vin 95 is offline
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Take it to auto zone and they will read the codes for free,the light does'nt have to be on for it to have pending codes.this is a good place to sounds like you have an intermitant problem,coming and going.maybe you can find it before it goes out for good.however it may be something very simple.with these trucks it usually say the fuel pressure is fine,did you try unpluging the vaccum hose to the pressure regulator with the truck running and see if the pressure came up by about 10psi ? and is there gas being sucked into the vaccum hose to the regulator?

Last edited by Vin 95; 08-20-2004 at 02:03 PM.
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Old 08-20-2004, 10:08 PM
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Dealford Dealford is offline
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This Ranger being new to you should get a new fuel filter, just because, like all the other little things.
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