7.3L Runs BAD!! - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 6 (permalink) Old 01-10-2007, 01:22 AM Thread Starter
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7.3L Runs BAD!!

I have a 1999 F-450 There are two probmels that I'm having

1) From time to time when you step on the gas pedel there's no tesponce like the truck is in nutral but after stepping on it a few time the truck wakes up and them goes.

2) When I drive the truck dow the road under exceloration it seams like the truck is getting too much fuel or not enough fuel it blows white / blue smoke and dose not want to shift, or when it dose the truck won't shift till 3k rpm or the fuel finely seems to presurise properly.

3)Also have the isue when trying to get it to down shift into a passing gear.

4) In the A.M first fire up the truck either will not ge like there's no power or it goes like a bat out of Heck then after that it rund bad.

Does any one have any sugestions on where to start?

I would realy appriciate it
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post #2 of 6 (permalink) Old 01-10-2007, 01:35 AM
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Need to pull the codes first off. Your going to need a new petal ***. that is a common part that goes out. I would guess that would take care of 3 of your issues... Try that first.

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post #3 of 6 (permalink) Old 01-10-2007, 02:23 AM
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Originally Posted by CSIPSD
petal ***. .

I agree with joe for once:
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post #4 of 6 (permalink) Old 01-11-2007, 01:54 PM Thread Starter
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I'ld like to thank you both on the advice but had to brake down and take it to the shop
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post #5 of 6 (permalink) Old 01-11-2007, 07:07 PM
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I'm betting it's not the pedal assembly.
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post #6 of 6 (permalink) Old 01-13-2007, 02:52 PM Thread Starter
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The problem with the truck was a multiple of thinfs 1) The aftermarket fuel filter had come apart (I guess that's a reocuring problem with the aftermarket filters. 2) the fue presure regulator came apart 3) the fuel drain valve was leaking and finally 4) the air box has a hole in it and they said that the comprossor wheel eroded an dit how only has 9 psi of boost The mechanic sail it shouls be 15 so I'm going to save my pennies and get a new turbo. As far as the pedal the electronic conection was warn out and had to be replaced. Again I thank you all for your help but when you only have 2 tow trucks and one goes down you have to take it to the mechanic.

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