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john -aka eauto
john -aka eauto, The Car Guy
Category: Ford
Satisfied Customers: 16309
Experience:  ase tech over 15 years in the field
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I have a 2001 f250 4x4 v10 411,000 miles all original it

Customer Question

I have a 2001 f250 4x4 v10 411,000 miles all original it does not have much power when its cool out it runs like a raped ape when its hot out its real slugges has a ping as well any suggestions
Submitted: 1 year ago.
Category: Ford
Expert:  john -aka eauto replied 1 year ago.

is the engine light on? have you ever cleaned the maf sensor?

Customer: replied 1 year ago.
No engine light maf is brand new no codes with my modis hooked to it
Expert:  john -aka eauto replied 1 year ago.

did it run good prior to the maf change?

Customer: replied 1 year ago.
Runs same with new or old one in it it has 411,000 miles and all original could it just be old and week still has stock exhaust
Expert:  john -aka eauto replied 1 year ago.

411,000? yea its getting tired... timing chain may be sloppy...rings are probably very seated...I bet a timing chain ould wake it up...but with 400k I think d be looking for a replacement motor rather then opening it up