Acts like the throttle's disconnected

wwracer · Sep 2, 2008

Hey guys great site. Bought my third Ranger two years ago. Other than the crappy front hubs it's been a good truck. It has 160K on her uses no oil and gets great gas mileage. Today I started my truck and started as normal then stalled. After a few attempts I got it to idle but it "hunts" between 500 and 1000 RPM till warm then holds a normal idle. The real problem is when I push the gas pedal down the motor will not rev. I visually verified that the cable is attatched, I open the throttle and it just bogs and stalls. Any ideas? Signed stuck at my cabin 30 miles from town......

triumphrider-1 · Sep 3, 2008

Plugged fuel filter?

Dirty fuel injectors? Can you measure the fuel rail pressure?

Ranger44 · Sep 3, 2008

Throttle Posistion Sensor. TPS

It helps the computer know where the throttle is at. It's a 500% over ride sensor. The computer cannot get feedback from the O2 sensors fast enough to notice someone stepping on the pedal. It would cause a bogging situation. The TPS helps this by increasing the injector pulses right away, then leveling out later from O2 feedback. That's the simplest I can put it.

wwracer · Sep 3, 2008

Ranger 44, that's where I was leaning toward also, however, just as a guess I pulled the plug on the MAF and she sprung back to life. Drove it a bit a seemed to run as well or better than it did when the MAF was working. I plugged it back in just to make sure and it crapped out as soon as I attatched the plug. I'll try cleaning the wires, but visually they already look pretty clean. I'm pretty sure the sensors dead, but at a 120.00 for a new one I'll give it a whirl

Acts like the throttle's disconnected

wwracer

10+ Year Member

triumphrider-1

15+ Year Member

Ranger44

15+ Year Member

wwracer

10+ Year Member

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