7.3 Missing
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New User
Joined: Nov 2007
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7.3 Missing
My 2000 7.3 misses and is real hard to start evan in the 30 dig. range
It continues to miss untill it has warmed up any ideas??
It starts better pluged in but still misses. Fuil filter has been changed
It continues to miss untill it has warmed up any ideas??
It starts better pluged in but still misses. Fuil filter has been changed
Cargo Master
Joined: Jun 2003
Posts: 3,292
Likes: 6
From: Ardenvoir, Washington
Do you get a SES light ? Can you get someone to read your fault codes? Mine was missing and it turned out to be a loose under the valve cover plastic connector that feeds your injectors and glow plugs.. (poor design, plastic locking tabs warp from the heat and oil.. ) And a big Welcome to lthe forum...
Last edited by clintbonnie; Jan 14, 2008 at 03:59 PM.
Post Fiend
Joined: Sep 2006
Posts: 5,584
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From: Millbrook Alabama
Is it missing or is it the ROMPS.
the Romps are when a truck starts and sounds like a gasser with a huge cam in it. Romp......Romp......Romp....
the Romps are an ongoing problem. some trucks do it, some do not. conditions vary from one truck to the next, but most of the time it is associated with cold weather.
the Romps are when a truck starts and sounds like a gasser with a huge cam in it. Romp......Romp......Romp....
the Romps are an ongoing problem. some trucks do it, some do not. conditions vary from one truck to the next, but most of the time it is associated with cold weather.
Senior User
Joined: Sep 2006
Posts: 276
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From: Linden, VA
Change the spark plugs... (he he)
Any smoke when this happens?
Smoke should indicate that you have fuel injection and a lack of compression (or mis timed injection)
If it is missing without any smoke, I would suspect that an injector or two are not firing.
Any smoke when this happens?
Smoke should indicate that you have fuel injection and a lack of compression (or mis timed injection)
If it is missing without any smoke, I would suspect that an injector or two are not firing.
Elder User
Joined: Sep 2006
Posts: 679
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From: NW Burbs of Illinois
Originally Posted by Izzy351
7.3 missing?!?!? Did ya' look under the hood?? 
But anyway, it sounds like classic worn wiring harness/connector problem.
But anyway, it sounds like classic worn wiring harness/connector problem.
Thought someone with a 6oh stole his 7.3 and swapped engines, lol J/K
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Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
How old is your engine oil and is it full? The fuel injectors are fired off of high pressure motor oil. If it's low or too old it will cause problems.
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Post Fiend
Joined: Mar 2007
Posts: 26,966
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From: Texas
Originally Posted by 00 350
When it first starts and before it warms up it does smoke untill it warms up???
Oil is new and it is full.
Oil is new and it is full.
Senior User
Joined: Sep 2006
Posts: 276
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From: Linden, VA
00 350,
Give this a try. When you start the truck. After the "WTS" light goes out, listen for the vacuum pump and/or any other noises from under the hood. When everything is quiet, start the truck.
I have noticed that my truck with have tough cold starts when the batts are getting worn down. All of the mechanical devices and heaters task the batteries pretty heavily.
If your truck starts well by doing this, you probably should have your batteries load tested.
Bill
Give this a try. When you start the truck. After the "WTS" light goes out, listen for the vacuum pump and/or any other noises from under the hood. When everything is quiet, start the truck.
I have noticed that my truck with have tough cold starts when the batts are getting worn down. All of the mechanical devices and heaters task the batteries pretty heavily.
If your truck starts well by doing this, you probably should have your batteries load tested.
Bill
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Have you checked to see if you have power at your GPR (glow plug relay)? It's the round relay on top of the motor. You should have 2 side by side (unless it's a CA truck). The one in front has 2 big wires and 2 small wires. One of the big wires is always hot. The other wire is only hot immediately after the key is turned on. Check for 12 volts after the key on.
I'll assume your blueish smoke is kind of white and look at the glow plug issues first since you can test this for free without tearing into anything. There are several other possibilities but I like to run through the free and easy ones first.
I'll assume your blueish smoke is kind of white and look at the glow plug issues first since you can test this for free without tearing into anything. There are several other possibilities but I like to run through the free and easy ones first.
