When I start my truck my RPM's are very low (almost stalling) until I tap the gas?
I'll start the truck and the RPMs will sometimes automatically go to below 1 then start dying out. I have to tap the gas quick and the RPM's will jump to around 3 then it will start the idle process. The truck runs fine otherwise I'm just concerned it might cause future problems. Is my throttle just getting stuck or something?
2003 Ford Ranger
2.3 4 Cyl
Standard
160,000 Miles
Your RPMs should idle at about 500-800 RPMS a second if they idle above 1000 that's a problem you clearly no nothing about cars because that's about as basic as it gets
Remove and clean the idle air control valve and Idle speed control sensor with CRC Mass Air Flow Sensor Cleaner. They''re both located on the throttle body. Don't be surprised if the idle speed sensor needs to be replaced.
The idle speed sensor is what is supposed to increase idle speed slightly when the engine is cold.
It may be necessary to remove the throttle body from the intake manifold and *wire the throttle valve open. Clean the inside with CRC Throttle Body Cleaner and a small chunk of Green Scotch Brite Pad to scrub the tough spots near the air valve.
Who knows, the large air valve may be all that's sticking as the throttle spring is weakest when the throttle is closed.
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