When i go up a hill or go over 40 the service engine light blinks on and when i let off the gas it shuts off. what could be the problem?

Surges under load but only while going uphill Page1 - Chevy High ...

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Mar 6, 2011 - 14 posts - ‎8 authors
Trying to help out a friend. ... The truck starts, runs, and drives fine until you get to a hill. When going up hill it begins to surge, almost stalling but not quite. ... rubber fuel lines suck shut under a heavy load and act like that. .... tranny fluid level o.k.? ya got me stumped. runs great when it's on a flat surface?

Ford 460 engine - RV mechanic

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Will not take gas going up a hill but will maintain speed at 55 mph. ... Want to do a diagnostic test on my 1997 F250 with 460 engine. ... only get to about 40 miles an hour if i push it the engine acts like its running out of gas,thank you .... The truck hesitates on acceleration, while driving on flat surface is fine, however climbing ...

rough idle, stalling, loss of power. - CarGurus

up a hill start with the fuel filter.

Usually a sputter will occur under load conditions like going up hill from a lack of fuel. Start by changing the fuel filter.

Check for trouble codes.

if your talking bout check engine light or ses meaning service engine soon light is blinking u have a cylinder that isn't firing, usually cause by ignition coil, but fuel injector, crank sensor can cause it but most times its a coil u can stop at any auto parts store get the check engine light read

Well the on/off method sometimes is not Correct.I would suggest you to take it to an auto part store and have them scan it for you for free and they will tell you the exact code with the OBD2 then you can start from there.Good luck

usely if its not blinking its not a big deal if it starts blinking shut it off and restart ,if it keeps blinking dont drive it

oxygen sensor

SOUND LIKE FUEL PUMP.SCAN IT TO MAKE SURE.IT ALSO COULD BE FUEL PUMP RELAY OR FUSE.

Sounds like a bad plug wire or coil.