Engine hesitation

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01-22-2019, 08:10 AM

Brannon Sanford

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Engine hesitation

I have a 95 f150 5.8l whenever I acceloate the engine feels like it struggling and when it shifts gears it starts shaking like a Miss fire anybody have any ideas?

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01-22-2019, 09:46 AM

67xr7kat

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Spark plug, plug wire ?

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01-22-2019, 09:58 AM

rla2005

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Expanding on the previous reply......how old are the spark plugs, wires, cap & rotor? Fuel and air filter? Never overlook the obvious.

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01-22-2019, 03:07 PM

BBpwer

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possibly a vacuum leak

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01-22-2019, 05:14 PM

Brannon Sanford

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I changed the spark plugs dist cap rotar wires and ignition coil it still has a shutter like hesitation as I acceloate I watched some videos and alot of them were saying the same thing the distributer or pick up coil inside the distributer is bad I know it has a miss fire because that what was said in the videos and I know i saw my cylinder 1 spark plug With burn marks around the base but the others were fine

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02-14-2019, 07:50 AM

rla2005

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Did you route the plug wires properly? Cross-fire is a very common problem.

courtesy of Steve83

link to your new thread for the same issue: https://www.ford-trucks.com/forums/1...e-shudder.html

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02-14-2019, 08:05 AM

Brannon Sanford

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Quote:

Originally Posted by rla2005

Did you route the plug wires properly? Cross-fire is a very common problem.

courtesy of Steve83

All plugs are in the right fireing order no issue there and I just replaced all plugs dist cap and rotor a week ago because I replaced them in October and last week when I replaced them the cap and rotar was burnt

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02-14-2019, 08:16 AM

rla2005

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Quote:

Originally Posted by Brannon Sanford

All plugs are in the right firing order no issue there

The question was "Did you route the plug wires properly?" That has nothing to do with what wires go to which plug. It's the routing to get from Point A to Point B.

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02-19-2019, 08:26 AM

Brannon Sanford

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Quote:

Originally Posted by rla2005

The question was "Did you route the plug wires properly?" That has nothing to do with what wires go to which plug. It's the routing to get from Point A to Point B.

Yes they have been routed the right way

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02-19-2019, 10:37 AM

rla2005

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What brand(s) are you using for the ignition components?

Have you run the Key On Engine Off (KOEO) tests and Stored Code display? Typically if the PIP output was erratic you would get a code for it. As well as other issues that may be flagged.

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03-04-2019, 05:29 PM

Brannon Sanford

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I'm going to end up taking it to a shop to have a diagnosis done with it taking a obd1 reader I have no check engine light on but I know these older vehicles won't always tell u to check the engine when something is wrong

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03-04-2019, 09:34 PM

Squisher

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Fuel filter and o2 sensor I'd look at too for maintenance depending on mileage and when they were last done.

Running a self diagnostic test on your truck is easy to do for codes, no code reader is needed. Google it up, there's lots of videos/threads on it. Report back with any stored codes from a key on engine off(koeo), and a key on engine running(koer) self test and you'll get lots more direction/help. Make sure the truck is warmed up to operating temp before you do it, otherwise that will throw extra codes.

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#13

03-05-2019, 09:06 AM

Brannon Sanford

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Just did the fuel filter and pulled the O2 sensor and still acting up and check engine light is not coming on so I was just going to have a mechanic diagnosis it cause I know these older trucks check engine light won't come on for everything so u just got to put a scanner on it

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