Glow plug relay bad??
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Elder User
Joined: Nov 2005
Posts: 726
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Glow plug relay bad??
Think I know the answer but wanted to bounce this off you guys.
Been noticing some blueish white smoke at start up in the mornings for about 30-60 sec after startup. It start fine just kills all the skeeters around ... lol. But then doesn't do it the rest of the day. The nights here have been in the upper 50's to lower 60's lately. So i put a volt meter on the relay this morning after startup while it was smoking. I got 12V on the batt side, 12V on both the little studs and a big 0V on the rear large stud. The one with the yellow and brown wires in the ring terminal. I'm thinking my GP relay is shot?? Right??
One more question for ya. At startup, with the hood up, I also noticed a roll of the same smoke coming from the exhaust pipe came out from behind my turbo somewhere. I'm thinking I've got an exhaust leak too or is this normal? What's the best way to find a leak with a stethascope??
Thanks,
Brian
Been noticing some blueish white smoke at start up in the mornings for about 30-60 sec after startup. It start fine just kills all the skeeters around ... lol. But then doesn't do it the rest of the day. The nights here have been in the upper 50's to lower 60's lately. So i put a volt meter on the relay this morning after startup while it was smoking. I got 12V on the batt side, 12V on both the little studs and a big 0V on the rear large stud. The one with the yellow and brown wires in the ring terminal. I'm thinking my GP relay is shot?? Right??
One more question for ya. At startup, with the hood up, I also noticed a roll of the same smoke coming from the exhaust pipe came out from behind my turbo somewhere. I'm thinking I've got an exhaust leak too or is this normal? What's the best way to find a leak with a stethascope??
Thanks,
Brian
Elder User
Joined: Mar 2004
Posts: 509
Likes: 1
From: Pasco, WA
Sounds lke the relay's fine; one of the small posts switches to ground when activated. Does the voltmeter drop like a rock after the ignition is turned on? Re: the leak. It's fairly common to have leaks at the exhaust Y. Look for discoloring on the firewall behind the Y. I tightened mine & it made a noticable difference.
Postmaster
Joined: Aug 2004
Posts: 3,948
Likes: 2
From: SHELTON, WA
you are probably leaking at the exhaust housing to dp connection. very common. it isnt the best seal right there. its metal to metal. mine does it too. i wouldnt sweat it.
when i turn my key on my volt meter in truck drops to 9ish. if yours isnt then you probably got a bad one or a bad gp or 2.
i recommend the stancor gpr if your going to do it. 40 bucks. if you need a link to it let me know.
when i turn my key on my volt meter in truck drops to 9ish. if yours isnt then you probably got a bad one or a bad gp or 2.
i recommend the stancor gpr if your going to do it. 40 bucks. if you need a link to it let me know.
