HELP PLEASE!!! 1999 ford lightning Is bogging out!!!!

frankylightning

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I need help!!! My lightning is running like crap

I have a 99 ford lightning, motor is stock except for the 4lb crank pulley

The issue Im having is that when i floor it the truck bogs out? No power at all
No check engine light on....


Any help or suggestions?????
 

SVT Phillip

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I'd start by checking ur plugs.. Maybe ur coils as well could have one loose.. Those would be the easy things to look for first..
 

Rick@Amazon

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Are your fuel pumps stock? I've seen alot of trucks with the pump lines split and just pumping fuel back to the tank. Check the vacuum lines and the T coming of the back end of the blower. Oil makes them soft and they leak.


I need help!!! My lightning is running like crap

I have a 99 ford lightning, motor is stock except for the 4lb crank pulley

The issue Im having is that when i floor it the truck bogs out? No power at all
No check engine light on....


Any help or suggestions?????
 

5400lightning

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Dec 17, 2012
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FORD
I need help!!! My lightning is running like crap

I have a 99 ford lightning, motor is stock except for the 4lb crank pulley

The issue Im having is that when i floor it the truck bogs out? No power at all
No check engine light on....


Any help or suggestions?????

I have the same issue il change the coils + spark plugs this Saturday and let you know .
 

5400lightning

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FORD
I have the same issue as you in my case "after checking today" i had a bad coil which need to be replaced , cleaned the MAF and changed the spark plugs

car runs much better :)
 

Fade 2 Black

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I'm starting to think this is a problem with mine. You know of a way to check for that Rick?

Easier way if you have a fuel pressure gauge.

Let the engine idle, pull the vacuum reference from the FPR - should be 40 psi.

Jumper the fuel pump relay, turn key 'ON' and see if fuel pressure goes to 50+ psi.

If not then drop the tank.
 

SVT99RED

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Depends I had a issue once where it would have normal power all the way up to 1/2 throttle and the end result was spark plug blow out. Check the gap on your plugs. Along with everything else the others were saying about fuel pump and lines.
 

WhiTriCobra

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If you have a split line, your truck will idle and drive like normal till you got WOT, then it will bog down. Like mentioned, put a fuel pressure gauge on it. If you have a split, it will not hold pressure when you turn the key off. that's how i found out about mine splitting.
 

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