02 problem
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Logistics Pro
Joined: Jul 2001
Posts: 4,137
Likes: 41
From: Marble Falls, Texas
02 problem
My brother in law called me tonight to ask about a truck that came in his shop today.
No start
IDM relay clicking like crazy
Blown #22 fuse
I told him to check the fuel bowl heater. Does that sound correct to you guys?
He says if you replace the fuse, the IDM relay doesn't freak out. I'm pretty sure it's the heater, but tell me what yall think.
No start
IDM relay clicking like crazy
Blown #22 fuse
I told him to check the fuel bowl heater. Does that sound correct to you guys?
He says if you replace the fuse, the IDM relay doesn't freak out. I'm pretty sure it's the heater, but tell me what yall think.
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
You can pull the fuel bowl heater connector off the back of the bowl, and if the fuse no longer blows, there's your problem.
EDIT: Good point, Rick. I didn't even pay attention to that... And I don't have my own PC up right now to check #22 (I'm still working).
EDIT: Good point, Rick. I didn't even pay attention to that... And I don't have my own PC up right now to check #22 (I'm still working).
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
The fuse for the fuel bowl heater is not #30 on the 02 models. Does his WTS light come on? That's usually the sign for a blown heater. I can check my manual in the morning if no one comes up with an answer tonight (off to bed now).
Usually clicking relays are a voltage issue. Has he load tested the batteries? Need to find out what that fuse controls. If it's listed as PCM and is a 30 amp, it could very well be the fuel bowl heater.
Usually clicking relays are a voltage issue. Has he load tested the batteries? Need to find out what that fuse controls. If it's listed as PCM and is a 30 amp, it could very well be the fuel bowl heater.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Yeah, it sounds like you are. I usually have that info at my finger tips, but I'm on a different PC doing some work. If it IS the fuel bowl, disconnect it at the back of the bowl and it will keep that fuse from blowing if it's the problem.
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Thread Starter
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Logistics Pro
Joined: Jul 2001
Posts: 4,137
Likes: 41
From: Marble Falls, Texas
Fuel bowl heater was solid. Now he can't get the problem to repeat. He says in the info he's getting on their ASE sites says 22 is not the fuel bowl heater. It's IDM/IPR???? Does that make sense? I'm stumped on this one cuz I thought for sure the fuel bowl heater would be flinging around in there. So we're still open for suggestions.
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Where is everyone getting 02 truck from? I must have missed that. If he cannot get it to repeat, then he probably has bad/low batteries and is somehow masking it now. It will return if that was it.
What year truck is it? Who is puling the codes and with what? No other symptoms to speak of?
What year truck is it? Who is puling the codes and with what? No other symptoms to speak of?
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
The title of the thread?
The workshop manual says fuse 22 is for fuel injectors and the PCM 20 amp on the 02 model. I have difficulty finding things in the wiring section, so more research is required to be of any more help. The owners manual just lists Engine Control.
Edit: fuel bowl heater seems to be tied to Fuse 116 on the 02 model.
If I read this right, fuse 22 is Brake pressure switch, MIAH, IPR, GPR? Need some other input to see if I'm reading this right, or even found the right diagram.
The workshop manual says fuse 22 is for fuel injectors and the PCM 20 amp on the 02 model. I have difficulty finding things in the wiring section, so more research is required to be of any more help. The owners manual just lists Engine Control.
Edit: fuel bowl heater seems to be tied to Fuse 116 on the 02 model.
If I read this right, fuse 22 is Brake pressure switch, MIAH, IPR, GPR? Need some other input to see if I'm reading this right, or even found the right diagram.
Post Fiend
Joined: Sep 2006
Posts: 5,584
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From: Millbrook Alabama
Cody, have him check and see if there is possibly something grounding the GPR solenoid hot lug, or if something is grounding the MAIH solenoid hot lug.
Isnt there also a fuseable link in those 4ga wires?
Isnt there also a fuseable link in those 4ga wires?