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Old 10-27-2018, 12:32 AM   #7
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hatzie's Avatar
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 3,477
Re: Good wiring diagrams

Those are the Mitchell wiring diagrams.

My T400 manuals thread has the 93 GM wiring diagrams along with the Unit Repair and Emissions manuals. Look in My signature.

I don't have a 1993 service manual in my library but the 92 & 94 should get you what you need.

1987 - 1993 wiring diagrams were 11x17 pages. I usually print them on ARCH B (12x18) if I need a hard copy.

The parts and illustration books are extremely useful as well but the paper books stopped in 1993. As I've said before I have fiche for 94-01 T400 trucks but it'll cost an arm, leg, and several internal organs to get it digitized.

You can find most T400 manuals on evilbay for a reasonable price compared to the T800 manuals.
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8

RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.

Last edited by hatzie; 10-27-2018 at 12:42 AM.
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