Ongoing problem please help
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Junior User
Joined: Oct 2012
Posts: 94
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From: Sarasota F.L.
Ongoing problem please help
Ok guys I have a 2000f250 7.3
Truck first had problems with cold starting would take days of cranking to fire but one running ran with no problems
I replaced the Lpop the ipr sensor and checked a lot of sensors the icm was replaced 4 months ago
Local mechanic threw his hands up says it's gotta be electrical yesterday I was driving the truck and it just died going fifthy when I cranked same symptoms but when I looked the power wire that jumps battery's was disconected so yesterday I replace all the power cables and battery chrims and she starts right up no problem but this morning I was leaving the gym and messing around kinda gassing it over speed bumps slow and it just died like it wasn't getting fuel and my runner was on 75hp could this be a fuel pump if so I would like to put I hp pump in please help tired of throwing money and not fixing problem
Truck first had problems with cold starting would take days of cranking to fire but one running ran with no problems
I replaced the Lpop the ipr sensor and checked a lot of sensors the icm was replaced 4 months ago
Local mechanic threw his hands up says it's gotta be electrical yesterday I was driving the truck and it just died going fifthy when I cranked same symptoms but when I looked the power wire that jumps battery's was disconected so yesterday I replace all the power cables and battery chrims and she starts right up no problem but this morning I was leaving the gym and messing around kinda gassing it over speed bumps slow and it just died like it wasn't getting fuel and my runner was on 75hp could this be a fuel pump if so I would like to put I hp pump in please help tired of throwing money and not fixing problem
i ain't rite
Joined: Mar 2005
Posts: 65,591
Likes: 5,617
From: Marlboro Mental Hospital.
no cold start usually means the glow plugs are not working.
as for dying after going over a speed bump, check the fuel pump inertia switch behind the passenger kick panel. you may have tripped the switch.
as for dying after going over a speed bump, check the fuel pump inertia switch behind the passenger kick panel. you may have tripped the switch.
Lead Driver
Joined: Jul 2003
Posts: 7,406
Likes: 52
From: Wheatland, Mo
Check on the underside of the wiring harness that goes over the drivers side valve cover. It is a known issue for that harness to rub on the valve cover and wear through the insulation causing a short that can and will kill the motor.
Also...since I don't see you mentioned it...
CPS - replace if you haven't already.
Also...since I don't see you mentioned it...
CPS - replace if you haven't already.
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Junior User
Joined: Oct 2012
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From: Sarasota F.L.
Almost positive it's the fuel pump it stalled out like ten times today already just sitting at a stop light or when I put it on gear and when cranking when it fires it's so weak till I floor it also while I'm driving it will just start doing injector knock then go away really quick
Post Fiend
Joined: Sep 2003
Posts: 6,096
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From: Mesa AZ
Almost positive it's the fuel pump it stalled out like ten times today already just sitting at a stop light or when I put it on gear and when cranking when it fires it's so weak till I floor it also while I'm driving it will just start doing injector knock then go away really quick
If you install a fuel pressure gauge at your filter housing then you can watch the pressure at idle and under load to see if it's dropping below spec.
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Freshman User
Joined: Oct 2012
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cold start problems is most likely the Glow Plug Relay, if the truck starts up with the heater block plugged in that is the problem. 207K mile and have replaced the GPR twice
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Junior User
Joined: Oct 2012
Posts: 94
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From: Sarasota F.L.
Truck has 160 on it but the fuel pump had no pressure built up on the high side just drizzled out I'm replacing today in the am will let yall know also tank is les then a year old in truck I replaced it when I chopped the frame
Postmaster
Joined: Jan 2012
Posts: 2,693
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From: West of Chicago
I also think it's hutch mod time, these trucks have pretty stout pumps, mine was original with 300,000 miles on it and I had no issues after the hutch mod. A simple fuel pressure gauge can eliminate a costly pump.
More Turbo
Joined: Mar 2006
Posts: 582
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From: Eads, TN
If you are having cold start issues I would test the GPR with a meter. When you first try to crank it on cold starts, do you see a lot of white smoke coming from your exhaust pipe?
Testing your GPR, when you turn your key to the ON position, don't try to crank it at this point, you should read approximately the same voltage as your battery on the GP side of your relay(driver's side).
I'll try to find the YT video which describes the procedure.
Also, check your ICP electrical connection. If you unplug it and notice oil in the connection, it a sure sign that your ICP is going bad or bad altogether.
As mentioned already, you can try to change your CPS. It's a cheap part and if it doesn't cure your issues just use it as a spare. Buy OEM and not aftermarket parts form Autozone, O'Riley, etc. Supporting vendors here sell these OEM parts as well.
You can try to leave it unplugged and see if it cures the dying issues.
Seems as though you might have two different issues at the same time.
Testing your GPR, when you turn your key to the ON position, don't try to crank it at this point, you should read approximately the same voltage as your battery on the GP side of your relay(driver's side).
I'll try to find the YT video which describes the procedure.
Also, check your ICP electrical connection. If you unplug it and notice oil in the connection, it a sure sign that your ICP is going bad or bad altogether.
As mentioned already, you can try to change your CPS. It's a cheap part and if it doesn't cure your issues just use it as a spare. Buy OEM and not aftermarket parts form Autozone, O'Riley, etc. Supporting vendors here sell these OEM parts as well.
You can try to leave it unplugged and see if it cures the dying issues.
Seems as though you might have two different issues at the same time.
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