Cold start problems
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Joined: Nov 2008
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Cold start problems
Hey all,
I have a '99 Powerstroke that doesn't like to start when cold. I've replaced the glow plugs and relay...still no luck. If I plug in for an hour it starts. My Chilton says that the PCM gets an input from the Oil temp sensor, could this be the problem?
The only code it's throwing is P603 on a Superchips tuner.
Thanks
Radargod
I have a '99 Powerstroke that doesn't like to start when cold. I've replaced the glow plugs and relay...still no luck. If I plug in for an hour it starts. My Chilton says that the PCM gets an input from the Oil temp sensor, could this be the problem?
The only code it's throwing is P603 on a Superchips tuner.
Thanks
Radargod
Post Fiend
Joined: Feb 2007
Posts: 7,191
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From: Blairsville,Ga
could be a batery issue
you would be better to post in the 7.3 forum https://www.ford-trucks.com/forums/forum31/
you would be better to post in the 7.3 forum https://www.ford-trucks.com/forums/forum31/
Post Fiend
Joined: Feb 2007
Posts: 7,191
Likes: 4
From: Blairsville,Ga
the door lock problems and batteries can be tied together,mine were but not always true
batteries have to maintain 10.5 volts while starting
when you plug it in the engine wil start easier taking less out of the batteries
so basically a battery and alternater check is about first to do
P0603 may just mean the battery was disconnected
batteries have to maintain 10.5 volts while starting
when you plug it in the engine wil start easier taking less out of the batteries
so basically a battery and alternater check is about first to do
P0603 may just mean the battery was disconnected
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New User
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Does it mean that there's not enough juice to power the GP's? But still turn over the engine? I know I have a weak battery, but since the gp's engage first I hadn't thought that was the problem.
I really don't trust autozone to check the batteries...can I check them myself with a multi-meter at start-up?
Thanks again.
I really don't trust autozone to check the batteries...can I check them myself with a multi-meter at start-up?
Thanks again.
Post Fiend
Joined: Feb 2007
Posts: 7,191
Likes: 4
From: Blairsville,Ga
yes you can check them somewhat,put volt meter on right battery and have someone try to start it.Voltage while starting has to be at least 10.5 or it won't fire the injectors
the glow plugs stay on about 2 minutes even though light goes out earlier
the glow plugs stay on about 2 minutes even though light goes out earlier
Post Fiend
Joined: Feb 2007
Posts: 5,078
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From: Rural WV
LOL! My 03 doesn't like to start in the cold unless its plugged in.
Keep a couple of things in mind....number 1 you're already concerned about your batteries...number 2 when the temps drop your oil gets thick which puts an extra strain on your starter, your batteries, your whole motor! Plug it in!
I plug mine in when I walk my dogs for the last time before we call it a night and unplug it before I fire it up in the morning.
Joe
Keep a couple of things in mind....number 1 you're already concerned about your batteries...number 2 when the temps drop your oil gets thick which puts an extra strain on your starter, your batteries, your whole motor! Plug it in!
I plug mine in when I walk my dogs for the last time before we call it a night and unplug it before I fire it up in the morning.
Joe
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Senior User
Joined: Sep 2003
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From: west seneca ny
ended up being my alternator was only kickin out 9.3 volts lol im surprised i made it home from the auto parts store lol
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