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Engine is Missing, half power etc

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Old Oct 16, 2018 | 08:40 AM
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Engine is Missing, half power etc

1993 F350 CC 7.5 Yesterday jumped in and almost immediately it bogged down attempted to stall, missing etc. and engine light came on. Not really sure how to perform the "paper clip code check" so I thought I would ask of some immediate things to look for, vacuum lines look intact, I did just change the oil but don't think that is reason. No previous indications before yesterday, thanks
 
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Old Oct 16, 2018 | 03:32 PM
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Honestly, if you can post a question on here you can learn how to pull the codes off the CEL. Go to Youtube and there's plenty of decent videos that walk you through it. No sense guessing when the codes will tell you what it is. And if you live anywhere near a parts store, most will pull the codes for you too for free...because they know you'll walk inside and buy parts.
 
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Old Oct 16, 2018 | 07:04 PM
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Old Oct 16, 2018 | 08:21 PM
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would help to know what you are working on, must apologize for the above,but google is your friend.
 
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Old Oct 17, 2018 | 01:20 AM
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My go to check in this situation, after codes, is fuel pressure.

I'm an advocate of yearly fuel filter changes as well. Get one bad station and it can plug the filter, then excessive back pressurw over works the pump(s), and reduces fuel economy. Left long enough the pumps fail, and can leave you with what you're describing.
 
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Old Oct 17, 2018 | 01:22 AM
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Originally Posted by Robert Long
would help to know what you are working on, must apologize for the above,but google is your friend.
1993 F350 CC (cab & chassis? Or crewcab? Not that it matters) with 460 gas engine.
 
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Old Oct 19, 2018 | 03:40 PM
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Originally Posted by GoinBoarding
1993 F350 CC (cab & chassis? Or crewcab? Not that it matters) with 460 gas engine.
Originally Posted by GoinBoarding
1993 F350 CC (cab & chassis? Or crewcab? Not that it matters) with 460 gas engine.
thank you, I got a Ford OBD1 scanner and it did not show a code except for 539 which I mistakenly left the AC on rechecked and it gave me a 10 then 111. Has been running great since. Felt like a vapor lock or vacuum leak and I was heading for an appointment so took my other car. Fuel filter has been changed less than 1000 miles, same as air filter. Will watch it and see. I just filled both tanks, was holding off in case it was a pump, I figured both can’t be bad so I’d run the front dry and siphon the rear to the front if needed

Not sure if exhaust can do it, sounds a little rough, been tossing around dumping the smog stuff and running headers with new exhaust couple things have been disconnected prior to my purchase so??? Plus I have a set of pre this gen headers without the smog tube. Haven’t pulled the trigger as I have read concerns with trouble codes if done, and head bolts snapping.

Thanks for for the replies!!
 
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Old Oct 20, 2018 | 09:51 AM
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Originally Posted by Robert S


thank you, I got a Ford OBD1 scanner and it did not show a code except for 539 which I mistakenly left the AC on rechecked and it gave me a 10 then 111. Has been running great since. Felt like a vapor lock or vacuum leak and I was heading for an appointment so took my other car. Fuel filter has been changed less than 1000 miles, same as air filter. Will watch it and see. I just filled both tanks, was holding off in case it was a pump, I figured both can’t be bad so I’d run the front dry and siphon the rear to the front if needed

Not sure if exhaust can do it, sounds a little rough, been tossing around dumping the smog stuff and running headers with new exhaust couple things have been disconnected prior to my purchase so??? Plus I have a set of pre this gen headers without the smog tube. Haven’t pulled the trigger as I have read concerns with trouble codes if done, and head bolts snapping.

Thanks for for the replies!!
I'd be careful playing around with the exhaust (headers provide little, if anything most of the time) --- your O2 sensors might misbehave, give strange readings and then the computer, engine will act up..............
 
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