Ford Super Duty (1999-2016) :: 2003 F350 - Hard Or No Start / Shaking In Low RPMs / Slow Response From Gas Pedal
Aug 22, 2016
I need fixing my 2003 f350 6.0 diesel, I have been working on this truck for a while and still am having problems, here was the original symptoms:
-Hard start or no start on a sunny day
-Rough idle for 10-15 minutes
-Rough shaking in the low RPMs (35 mph)[/COLOR]
-Slow response from the gas pedal
-boost would only get to 14
My dad and I then did many things to the truck in the shop, those things are:
-Air test and replacement of coupling going into oil branches (next to HPOP)
-Replaced EGR valve (no good)
-Replaced ICP sensor (leaking oil)
-Replaced ICP sensor and IPR valve piggtails (due to frayed wires)
-Cleaned Turbo
-Cut MAP sensor hose and reattached it (spliced on the end)
-New battery
-Performed a bubble test and found two bad injectors on passenger side (injectors #5 and #7)
-Cleaned and lubed tops of injectors
-Replaced O rings and copper crush washers on all injectors
-Replaced nipple cup O rings (tight)
-Blew out injector cups
-Bubble tested after injectors put back in (no more bubbles)
-New FICM, EGR cooler and oil cooler were already installed
-Ohm'd main engine wiring harness (good to go)
-Taped up frayed wires on fan clutch connection
-Increased wire gauge on the positive jumper between both batteries
-Sanded each ground on the batteries and engine, cleaned battery clamps, lithium greased connection points.
-Checked fuel for air (no air)
-Checked fuel psi (85 psi, plenty)
-Oil changed
After doing all of this (diagnosing as we fixed each thing) we now fixed many things including the hard/no start problem. Now, for the first three to five minutes:
-It starts right up
-Runs perfectly, no shake and instant response from the gas pedal and turbo
-Boost goes to 28
-ICP is 800-950 on idle
-IPR is 25-26.9% closed
After five minutes however:
-Starts to shake
-IPR % starts to raise
-Received no response from gas pedal (absolutely no power)
This truck has been torn apart like 8 times and I have to do it on my spare time.
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2003 f250 4x4 7.3 auto
Been an ongoing problem with truck, pedal would sometimes lose all response. truck starts and idles fine but will not throttle up and all needles on the instrument cluster are at their rested position and the odometer doesn't even light up, however all the backlights still work fine.
The owner said that a 10 amp fuse on the bottom row of the fuse panel would occasionally blow, and that's when the pedal would go dead, he would replace it and keep driving till it blew again... usually about a week. I checked all fuses on the truck tonight and all are fine.
Unplugged the connector on the pedal sensor and cleaned and reinstalled and still wont throttle up. I am not sure what number the fuse was that he kept replacing but i *think* it was a cluster fuse. Is their an correlation between the cluster stopping the pedal sensor from working or vice versa?
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i have a f350 superduty with a 7.3 turbo diesel and I pretty much hafta keep it plugged in to get it to start, i have installed all new glow plugs and both relays have been changed and the problem is still there, only other option i have not tried yet was changing the pcm controller but unsure if that is the problem ..
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Can get up to speed about 55-60 in my 2003 f250 6.0 4x4 truck and hit the brakes hard and the pedal gets hard almost like you cut the truck off and the truck doesn't stop well I can let off the pedal and hit it again hard and it works like it should. Also when it does this the power steering doesn't work. I was on an exit ramp and almost wrecked when I exited off the interstate I hit the brake pretty hard and couldn't steer I let off the brakes then hit them again and it worked fine and so did my steering. It would seem that the two are connected somehow. What's wrong?
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2006 F250 6.0L CC Lariat with Climate Control
- 1st Start in morning, AC Blows cold.
- Run it down the Interstate AC Blows cold.
- Get back into traffic, slow speed, low RPM, AC doesn't cool.
Is this likely the clutch going South or low Freon perhaps? At higher RPMs, 1000+ seems to work good. At idle, when hot, not so much. Just looking for possibilities.
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My 2004 F350 6.0L v8 has a weird shake when I get between 45 and 55 mph. Doesn't feel like its the tires, feel like the engine. I think I might have the #5 glo plug out. Is that it or could something else be wrong? If it is this how bad is it to drive on.
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Had it towed, home now no nothing, connect battery and just clicking from under dash no start ? not battery, wont even jump
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I'll try not to post an entire book.. But I bought a 2000 F250 not even 8 months ago, it did have issues before but I changed out the spark plugs and coils and it fixed it's original missing issues.. I also just recently changed the fuel filter but it didn't fix it's new problem.. It drives ok around town but if I get over 35 mph it doesn't run well... If I try to keep a steady foot on the gas but don't get the RPMs over 2000, the RPMs will stay where they're at for just a second then they will drop down and the whole truck starts shaking.. I push more on the gas and it shakes even more and the RPMs don't move at all until I really step on it.. It lacks in power going up hills as well... The dealership i bought it from said the Catalytic Converter was bad but my uncle who is a mechanic says it isn't.. It's the first vehicle I've bought so kinda wanna make it last..
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Shade tree mechanic, new to diesels and new to forum. I have the dreaded 03' 6.0 F350. It cranks over strong but will not start after its warmed up. I went to Auto Zone and they gave me the following codes: P2291, P132B, P0672, P0402, P0284. Once it's started it runs fine.
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2003 f-350 had no dash lights and no start or crank. Found battery cable junction on left fender broken fixed, replaced starter. Drove it sunday, went about 15 mi and just shut off. Towed home was a battery, replaced battery, now I have lights but turn key and nothing? Was starting fine, all summer seems like a cold weather issue. Any relays I should be looking for? I was going to check power to started but raining too hard this am ...
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1999 F-350 7.3 Dually 2wd Front End issues. I think I may have several things going on so here goes. Truck has about 130,000 miles on it . Bought it with 60,000 miles in 2009.
It's always worn the front tires weird but it's gotten a lot worse and it's happening in about 10-15 thousand miles now. It's wearing the tires on both sidewalls like under-inflation but I run 70 lbs in them. I've noticed for several years now that it makes a knocking sound and I feel it in the floorboard, shakes in the steering wheel when I turn to the left only in a corner at speed. (65-70) ...
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