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1998_K1500_Sub
Supporting Member
Nitro Junkie
·
From
Rural Illinois
Joined
Jan 28, 2019
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Thursday at 10:00 AM
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1998_K1500_Sub
replied to the thread
Fuel gauge sending wire disconnected= normal engine performance?
.
Good morning! One thing that’s interesting to note is that GM has two and possibly three isolated grounds on the GMT400, C17,18 and C19...
Thursday at 9:29 AM
1998_K1500_Sub
replied to the thread
Fuel gauge sending wire disconnected= normal engine performance?
.
^^^ Yes, @Road Trip noted it but I failed to mention it in my later posts, I only mentioned C17,18,19
Wednesday at 9:52 PM
1998_K1500_Sub
replied to the thread
Fuel gauge sending wire disconnected= normal engine performance?
.
Yeah… not really. What most people call “ground” is actually a multitude of parallel, relatively low impedance paths. The only...
Wednesday at 9:28 PM
1998_K1500_Sub
reacted to
Road Trip's post
in the thread
Fuel gauge sending wire disconnected= normal engine performance?
with
Like
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Good question. I went through all 4 volumes of the '98 FSM, and also checked the '99 FSM too. To be honest, it looks like the "G150"...
Wednesday at 9:22 PM
1998_K1500_Sub
replied to the thread
Fuel gauge sending wire disconnected= normal engine performance?
.
You might want to verify that there IS a G105 wire on your truck, and then give consideration to where it is connected. You may wish to...
Wednesday at 8:59 AM
1998_K1500_Sub
reacted to
2jduenas's post
in the thread
Fuel gauge sending wire disconnected= normal engine performance?
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Like
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Wednesday at 2:39 AM
1998_K1500_Sub
reacted to
2jduenas's post
in the thread
Fuel gauge sending wire disconnected= normal engine performance?
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Like
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Ok will do and as for the small black wire, I only jumped the to the frame to see what reaction I’d get but has been removed since, the...
Wednesday at 1:46 AM
1998_K1500_Sub
replied to the thread
Fuel gauge sending wire disconnected= normal engine performance?
.
I noticed in one of the drawings that G103 shares a common connection with G150 to a single stud on the engine. @2jduenas, is that...
Wednesday at 1:43 AM
1998_K1500_Sub
replied to the thread
Fuel gauge sending wire disconnected= normal engine performance?
.
Remove the ”C” connector from the ECU and probe the ECU pins directly with a DVM. By the way, if you have not removed that ground...
Wednesday at 1:33 AM
1998_K1500_Sub
replied to the thread
Fuel gauge sending wire disconnected= normal engine performance?
.
So if OP takes an ohmmeter and picks any two of those three pins (C17, C18, C19) he should see low impedance between them. I suggest he...
Wednesday at 1:15 AM
1998_K1500_Sub
reacted to
2jduenas's post
in the thread
Fuel gauge sending wire disconnected= normal engine performance?
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Like
.
No worries at all. The support here has been incredible; this is a fantastic forum. Unfortunately, yes the truck has definitely been...
Wednesday at 1:05 AM
1998_K1500_Sub
replied to the thread
Fuel gauge sending wire disconnected= normal engine performance?
.
So now you know for a fact, somebody’s f’d with the electrical system. :waytogo: All you need to do now is restore it. I’m sorry I...
Tuesday at 10:38 PM
1998_K1500_Sub
reacted to
2jduenas's post
in the thread
Fuel gauge sending wire disconnected= normal engine performance?
with
Like
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Hello everyone, Thank you for all of your responses, and I apologize for the delay in updating. I have been trying my best to allocate...
Tuesday at 10:37 PM
1998_K1500_Sub
reacted to
Schurkey's post
in the thread
ASE Certification
with
Haha
.
Ego officially boosted. For some silly reason, I took the Transit Bus Diesel Engine recert; haven't touched a transit bus engine since...
Tuesday at 10:32 PM
1998_K1500_Sub
replied to the thread
Fuel gauge sending wire disconnected= normal engine performance?
.
I'll be away for the rest of the week until next Monday, so my comments will be terse, if any. I think you're on the right path :waytogo:
Tuesday at 10:51 AM
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