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tims auto repair
tims auto repair, mechanic
Category: Ford
Satisfied Customers: 15383
Experience:  owns a repair shop....25 years
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97 f150 4.2 2wd runs but won't drive. Rpms won't g r t over

Customer Question

97 f150 4.2 2wd runs but won't drive. Rpms won't g r t over 2200. Cats glowing red (they were just replaced)
Submitted: 1 month ago.
Category: Ford
Expert:  tims auto repair replied 1 month ago.

Hi, My name is ***** ***** for the delay.
I will do my best to assist you.

Expert:  tims auto repair replied 1 month ago.

does it idle well?

does the engine light stay on?if so,can you give me the computer codes?

Customer: replied 1 month ago.
No cel no codes
Expert:  tims auto repair replied 1 month ago.

does it idle well?

wont go over 2200 rpms?please explain

Customer: replied 1 month ago.
It idles at about 500 RPM fairly smoothly when you push the gas it will only go to about 2,000 and 2200 RPM you put it in drive gear or reverse gear it won't go over 500
Customer: replied 1 month ago.
Checked the mass airflow sensor and the IAC valve both of them testing good
Customer: replied 1 month ago.
Also took both sides of the exhaust loose at the manifolds to make sure there was no clogs in the exhaust anywhere
Expert:  tims auto repair replied 1 month ago.

you need to test the fuel pressure,,your fuel filter may be clogged or the fuel pump may just be weak and needs replaced..

it sounds as if you dont have enough fuel pressure

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Customer: replied 1 month ago.
Fuel pressure 37 psi
Expert:  tims auto repair replied 1 month ago.

when it get to or close to the 2200 rpm,,does the engine pop and crack?

Customer: replied 1 month ago.
Maybe A little. I checked the timing and It seems to be out a little bit. I'm gonna check it out this weekend hopefully
Expert:  tims auto repair replied 1 month ago.

lets do that,,check the timing,,,i have seen bad coils do this also

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