doesn't run right
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Senior User
Joined: Jun 2006
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doesn't run right
hey guys, i have a 87 f150 witha 302, every once in a while when i get get on the gas the truck pauses and then goes, i think its becuase the o2 sensor is gone and its dumping extra fuel into the engine, but i'm not sure
thanks, chris
thanks, chris
FTE Legend
Joined: Jun 2006
Posts: 31,930
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From: Ottawa, Ontario
Had an 89 with similar problems. Turned out to be a vaccuum leak. Check the vaccuum canister on the passenger side inner fender well. The metal ones look like a large tomato can and rust along the bottom. Later trucks had a plastic canister... these can be sourced from a scrap yard cheap. This canister should hold some vaccuum even after the engine is shut off.
Hotshot
Joined: Jul 2002
Posts: 14,285
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From: Bend,OR
PULL CODES www.fordfuelinjection.com will show you how before you start throwing parts at an unknown issue. when was it tuned up last with plugs,wires, cap and rotor and timing set/checked?
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i don't have anything to check the codes with, and the vacuum canister has already been replaced, along with plugs,wires, brand new cap and rotar, MSD i believe...timing chain has 30,000 miles on it, i'll get you guys a specific descripition of whats going on with my truck, i'm gonna take it up town and watch it and see when tis happens
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took the truck up town and ran fine till it warmed up, and everytime i stopped and took off, full to half throttle the truck would rev up and pause for a second or two and then keep going. I have never had or heard of this problem,
thanks guys
chris
thanks guys
chris
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