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11-02-2021, 01:40 PM | #1 |
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Haynes vs GM Service manual
I am sure the GM service manual ST 330-79 is better then a Haynes repair manual. But is it worth buying over the Haynes if I already a repair manual. Does the GM service manual come with full color wiring diagram?
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79 Chevy 2wd BIG10 350 TH400 |
11-02-2021, 05:48 PM | #2 |
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Re: Haynes vs GM Service manual
The GM wiring diagram is a separate book not in the main service manual.
GM has several books. 1. Service manual 2. Supplemental service manual 3. Wiring diagram book 4. Assembly manual (for ~1980) 5. Drivers manual 6. Illustrated catalog 7. Parts catalog I have them all plus the Haynes. It all depends on what you are trying to do. |
11-02-2021, 06:14 PM | #3 |
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Re: Haynes vs GM Service manual
I was hoping to find a full color wiring diagram. I have a 1978 service manual for my Trans Am and it has full color wiring diagrams in them. What is the wiring diagram manual that I might be able to do a search on?
Thanks
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79 Chevy 2wd BIG10 350 TH400 |
11-02-2021, 06:21 PM | #4 |
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Re: Haynes vs GM Service manual
I don't think you can get the wiring diagrams new. Try ebay and search on Truck Wiring Diagrams.
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11-02-2021, 06:39 PM | #5 |
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Re: Haynes vs GM Service manual
The GM Manuals are far better than Haynes. And the Electric Manual is a separate book, as stated already. I found all mine on eBay. If you do a Google search for 78 Manuals, you’ll probably find other places that have them
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11-02-2021, 07:38 PM | #6 |
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Re: Haynes vs GM Service manual
If you're wondering what you'll get, download the service manual set for your year.
1979 would be three volumes; Service Unit Repair Wiring The wiring manuals up to 1986 are black and white fold out pages 11.5" x 35". The wiring diagram in the Haynes manual is only accurate for one year and I've forgotten which one.
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And please let us know if and how your repairs were successful. |
11-02-2021, 08:06 PM | #7 |
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Re: Haynes vs GM Service manual
Throw the Haynes in the garbage unless it is an older one. The new ones are so generic and watered down, they're not worth the purchase price in my opinion.
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11-03-2021, 08:30 AM | #8 |
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Re: Haynes vs GM Service manual
Heres a pdf of the chassis service manual for 1979
http://www.73-87chevytrucks.com/tech...ice_Manual.pdf
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11-03-2021, 08:59 AM | #9 |
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Re: Haynes vs GM Service manual
I have the same 78 Firebird manual with the full color diagram. Unfortunately, I have never seen that in any other GM manual. However, I will say that the GM manuals are much better as they are model specific. Haynes has too much general information.
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Jay Gesner Atlanta, GA 1985 C10 Long Bed 4X2 LS 5.3, 4L60E Father/Daughter Project |
11-03-2021, 10:31 AM | #10 | |
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Re: Haynes vs GM Service manual
Quote:
The GM manual PDFs are in my sig. You should be able to find paper copies on evilbay for a reasonable price. 1989 T400 wiring manuals are color as well IIRC. Your F body manual is the first color GM wiring manual I've seen outside of that one.
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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...
And please let us know if and how your repairs were successful. |
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11-03-2021, 10:42 AM | #11 |
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Re: Haynes vs GM Service manual
yeah, the color made it expensive. In the early 90's we (my nephew and I split the cost) paid $400 for it at a swap meet. It may actually get buried with me!!
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Jay Gesner Atlanta, GA 1985 C10 Long Bed 4X2 LS 5.3, 4L60E Father/Daughter Project |
11-03-2021, 11:06 AM | #12 |
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Re: Haynes vs GM Service manual
If you dig into the unit repair manuals you'll find automatic transmission fluid flow diagrams in color.
You don't see that kinda stuff in the post millennium manuals.
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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...
And please let us know if and how your repairs were successful. |
11-03-2021, 11:18 AM | #13 |
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Re: Haynes vs GM Service manual
yes, I have seen that before.
In my 1980 Pontiac manual, the wiring was also color but were broken out into different systems instead of one big diagram. This was also the year they went from glass round fuses to flat blade plastic fuses. By 1984 they cheaped out and went Black and white.
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Jay Gesner Atlanta, GA 1985 C10 Long Bed 4X2 LS 5.3, 4L60E Father/Daughter Project |
11-03-2021, 11:25 AM | #14 | |
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Re: Haynes vs GM Service manual
Quote:
My cousin had a 1979 Berlinetta Camaro and IIRC it had ATC fuses too.
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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...
And please let us know if and how your repairs were successful. |
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11-03-2021, 02:29 PM | #15 |
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Re: Haynes vs GM Service manual
That full-color fold-out is suitable for framing.
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11-03-2021, 03:29 PM | #16 |
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Re: Haynes vs GM Service manual
I have a GM 78 truck wiring diagram ordered in the early 90s using the address found in the GM drivers manual. I don't know what year it was printed. It is not in color.
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11-04-2021, 11:59 AM | #17 |
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Re: Haynes vs GM Service manual
The GM Service Training Textbooks that I scanned are full of color graphics.
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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...
And please let us know if and how your repairs were successful. |
11-04-2021, 12:02 PM | #18 |
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Re: Haynes vs GM Service manual
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11-04-2021, 02:30 PM | #19 |
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Re: Haynes vs GM Service manual
I don't
I do have some Chevrolet Service News but not full sets.
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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...
And please let us know if and how your repairs were successful. |
11-04-2021, 02:48 PM | #20 |
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Re: Haynes vs GM Service manual
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11-04-2021, 03:21 PM | #21 |
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Re: Haynes vs GM Service manual
There is a guy on ebay who sells color wiring diagrams for our trucks for around 25.00. I am thinking of buying one of these but not sure of the quality
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79 Chevy 2wd BIG10 350 TH400 |
11-04-2021, 10:19 PM | #22 |
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Re: Haynes vs GM Service manual
I have an 84 GMC Light Duty Trucks Service Manual, and Haynes manual for mine. The Haynes I keep in the truck for "quick fixes" or diagnoses.
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11-05-2021, 05:07 PM | #23 | |
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Re: Haynes vs GM Service manual
Quote:
It changed into something called GM Techlink newsletters. Not quite service bulletins but they had some interesting articles of interest to service techs. There was a heads up about GM changing the Full to Empty resistance curve to keep the needle from moving as fast from Full to 1/2 tank in response to people complaining about fuel mileage during the fuel shortages in the 70's.
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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...
And please let us know if and how your repairs were successful. |
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11-05-2021, 05:43 PM | #24 | |
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Re: Haynes vs GM Service manual
Quote:
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11-06-2021, 09:14 AM | #25 |
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Re: Haynes vs GM Service manual
I don't have any of them at this point and didn't have very many when I had some. So... No.
The ones I did have had no information about CK trucks. Some do exist but I never had those volumes. The fuel gauge weighting article was on one of the Corvette boards.
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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...
And please let us know if and how your repairs were successful. Last edited by hatzie; 11-06-2021 at 09:28 AM. |
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