2000 & MAF Sensors
2000 & MAF Sensors
My truck has exhibited recently (as posted in the computer Chips forum) a hesitation at moderate to full throttle from a dead stop.
I'm told to check out the MAF sensor which I did.
The first thing I did was to read codes from the computer, which there were none. (I've got the Actron OBD-II scanner). The next thing I did at the suggestion of a friend was to disconnect the MAF sensor and take the truck for a drive around the block and see how it runs.
The hesitation was reduced (as was the engine power) but no codes, hard or soft were thrown. Now I'm leaning to a possible PCM problem instead of MAF. I've got a dealer appointment in a week, but in the meantime I'd like to keep doing some basic troubleshooting.
Any help would be appriciated.
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2000 F-150 XLT, Reg Cab/Long Box, Styleside, Oxford White, Dark Graphite Int., 4x4, 4.6L, 3.55 L/S, Off-Road pkg (Skid Plates, Cab Steps, Heavy Duty Shock Absorbers, LT265/70R17SL), Class III Towing pkg with Heavy Duty Cooling pkg, 4 wheel disk ABS, Overhead Console, Factory In-Dash CD, Remote Keyless Entry, and Sliding Rear Window.
Added: K&N FIPK, Cabin Air Filtration, Ventvisors, Ford Bug Deflector, New: Ford Bedliner, SuperChip
I'm told to check out the MAF sensor which I did.
The first thing I did was to read codes from the computer, which there were none. (I've got the Actron OBD-II scanner). The next thing I did at the suggestion of a friend was to disconnect the MAF sensor and take the truck for a drive around the block and see how it runs.
The hesitation was reduced (as was the engine power) but no codes, hard or soft were thrown. Now I'm leaning to a possible PCM problem instead of MAF. I've got a dealer appointment in a week, but in the meantime I'd like to keep doing some basic troubleshooting.
Any help would be appriciated.
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2000 F-150 XLT, Reg Cab/Long Box, Styleside, Oxford White, Dark Graphite Int., 4x4, 4.6L, 3.55 L/S, Off-Road pkg (Skid Plates, Cab Steps, Heavy Duty Shock Absorbers, LT265/70R17SL), Class III Towing pkg with Heavy Duty Cooling pkg, 4 wheel disk ABS, Overhead Console, Factory In-Dash CD, Remote Keyless Entry, and Sliding Rear Window.
Added: K&N FIPK, Cabin Air Filtration, Ventvisors, Ford Bug Deflector, New: Ford Bedliner, SuperChip
Senior Member
Joined: May 2000
Posts: 4,761
Likes: 0
Have you tried cleaning the MAF sensor to make sure it doesn't have FIPK filter oil on it. It can be cleaned with Windex and pipe cleaners. Are the any air leaks between the MAF mounting flanges. Just an idea.
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2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
4-wheel disc/ABS,Chestnut/Parchment,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification,Superchip,
Dynomax ultra-flow welded 3" cat-back.
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2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
4-wheel disc/ABS,Chestnut/Parchment,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification,Superchip,
Dynomax ultra-flow welded 3" cat-back.