The battery in my truck keeps going dead then I get a jump it will start but it idles high like I'm mashing the gas when I press the break it cuts off
SOURCE: High Idle
get a code reader like the Actron CP9015 Code Scanner, for 20 dollars and follow the directions. count the flashes and post the code if you need further help
SOURCE: Idles rough upon start , goes dead when letting up on gas.
If the bat went dead and was disconnected it can take 25 to 50 miles of driving for computer to reset sensors and controls. Sounds like MAF Sensor maybe reading different than when it was first driven. Did you drastically change climates or altitudes, New readings from when it originally was put into service. Slight changes in temp, alt and other variables gradually reset, if driving does not improve within 50 miles it will need diagnostics.
SOURCE: 1989 ford f350 460 gas
89 Has EFI not carb. I vote to give you a ZERO!! The problem is more likely the IDLE AIR CONTROL VALVE (no sh!@#) "IDLE"????
SOURCE: '03 Jeep Liberty starts weakly and needs gas pedal to idle
Turning over is what the starter does to the engine ...you can turn an engine over with no spark plugs in it...but you can't start it. Turning over is cranking .....the starter turns (cranks) the engine over (comes from when you had to put a crank in the front of the engine and crank it.)
Does it crank normally but has trouble starting???????
SOURCE: ford f-150 will crank but not start
I had the same problem but I did two fixes for it (1) when I bought the truck several years ago the duel tank switch was pushed in but i never fixed it and just would switch tanks with the switch pushed into the dash. after awhile it acted like it didn't know what tank to draw from point is i finally replaced the switch and it ran, but still ran rough, (2) on the left side of the motor their is an EGR valve (it was green colored vacum hose) I replaced that vacum hose and now it runs great.
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