2000 7.3l starting issues
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Senior User
Joined: Nov 2008
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From: simi valley
2000 7.3l starting issues
having trouble starting my truck.i replaced the glow plug module relay and that didnt help.it cranks for awhile then finally fires.once its warm it fires better but not perfect.ive heard there are fuel warmers and maybe thats what is messed up but not positive if this is true or not.anybody know how to fix this? thanks in advance
Post Fiend
Joined: Mar 2007
Posts: 26,966
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From: Texas
If you're running regular diesel, then fuel heaters are probably not your issue.
How long do you have to crank it before it starts? How cold is it outside for a cold start? How much faster down it start if you let it warm up first? Is there any smoke when it finally starts cold? Any smoke while cranking and trying to start? How much and what color?
How many miles on the truck? Chip or tuner? Other mods? How many miles on the oil, fuel and air filters?
How long do you have to crank it before it starts? How cold is it outside for a cold start? How much faster down it start if you let it warm up first? Is there any smoke when it finally starts cold? Any smoke while cranking and trying to start? How much and what color?
How many miles on the truck? Chip or tuner? Other mods? How many miles on the oil, fuel and air filters?
Thread Starter
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Senior User
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From: simi valley
Usually 15-20 seconds and probly 55-60 degrees.once its warm it starts in under 5.there isn't any smoke that I've seen yet.there's 164k on it.my nods r intake.exhaust and do tuner programmer.I took out the programmer and it still does the same thing.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 49
From: Texas
K&N air filter?
Since the fuel injectors fire off of engine oil and a clogged filter might cause a restriction, I'd start with the oil and filter change so we have a clean slate. Make sure your battery cables are clean and tight and fully charged. Then watch close for faint smoke while cranking during the no start so we can determine if the IDM is firing the injectors while you're cranking.
Since the fuel injectors fire off of engine oil and a clogged filter might cause a restriction, I'd start with the oil and filter change so we have a clean slate. Make sure your battery cables are clean and tight and fully charged. Then watch close for faint smoke while cranking during the no start so we can determine if the IDM is firing the injectors while you're cranking.
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From: simi valley
I changed the fuel filter and it was disgusting.cleaned the bowl n no luck.also got new batteries since mine were deep cycled.ill be doing my oil change tomorrow and ill post back in here.wish me luck.and the intake is airaid
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Senior User
Joined: Nov 2008
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From: simi valley
changed the oil,sucked the oil out of the hpop and put new oil in that as well.put the new batteries in.it fires extremely better but not perfect.so im going to run this new oil through the truck and it may get better.ive learned now to stay on top of my oil more.haha.but also im going to replace the two fuel filters in the tank probably this weekend
