Sound like you need to check all your vacume hose,s and your intake gasket for leaks,
Especially the PCV valve and elbow, the elbow connecting the PCV valve the the underside of the throttle body often become badly deteriorated and cause a vacuum leak with symptoms like yours.
replaced IAC, TPS, plugs/ wires and coil pack. Truck still suffers from erratic idle. Also replaced all 4 02 sensors.
2002 Ford F-150
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Maintenance & Repair
I have an 84 ford f-150, and when at stop lights it cuts off when i step on brakes. i changed fuel filter, master cylinder, and power booster and still have the problem.
1984 Ford F-150
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Maintenance & Repair
Any help or ideas out there. Don't want to keep throwing parts at it.
2004 Ford F-150 FX4 SuperCrew 4WD
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Maintenance & Repair
TUNE UP, DISTRIBUTER, COIL, MASS AIR FLOW SENSOR, IDLE SENSOR,FUEL FILTER,AND CLEANED THE THROTTLE BODY. CAN NOT FIGURE IT OUT . HAS ANYONE HAD THE SAME PROBLEM AND ANY ADVICE ON POSSIBILITIES ? I WOU...
1995 Ford F-150
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Maintenance & Repair
It dies sometime and has trouble starting. I have replaced the fuel tank, fuel pump, fuel filters behind pump and on engine. as if no fuel is reaching the carborater but when i check if lines are push...
1977 Ford F-150
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Maintenance & Repair
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