When running at a normal speed and you floor it to pass someone, it drops into passing gear, but it will not pick up speed. You have to let the accelerator before it will change back into overdrive. When driving along normally, it changes pefectly. Have replaced EGR valve, TPS senor, new fuel pump, new fuel filter, new plugs and wires, mass air flow sensor, idle speed sensor, etc. Any ideas?
SOURCE: Repalced O2 sensors, mass air flow sensor, and plugs error messag
dpfe velve
small emissions valve with one electrical connnector and three to four vacume lines located near your egr valve. this is a comon fault on fords emmissions system.
SOURCE: 2000 ford explorer 4.0 x-engine is stalling, missing and lose power while driving
Exhaust might be stopped up. Check the catalytic converter and or muffler.
Good luck!
SOURCE: bogs when accelerating from an idle, rough starts.
listen for a vaccum leak.also try disconecting bat for 5 min the reconnect and start truck and hold idle at 1500-2000 for 5 min. this resets and teaches computer to self adjust
SOURCE: MY 98 FORD WINDSTAR STALLS WHEN I IDLE OR COMING
I'd be looking at removing IAC valve, and cleaning it out with throttle body spray cleaner, and checking mounting gasket as well. Usually some success with cleaning it & spray ports it came out of, but if not you may need to replace it.
SOURCE: 1997 Mustang Cobra (4V, 4.6L), rough idling, won't stay running
silly question, however did you check the air box for nests. it is not uncommon for rodents to climb in and make themselves at home. i would also say to get a maf from ford. check ALL around the engine compartment and underneath for evidence of rodents and their leavings. youll be very suprised what you may find.cheers
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