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Technical

Technical information about the '76 to '79 Cadillac Seville. Subjects are "EFI Diagnosis", "'76 - '79 body parts", "Frame diagram" and "Electrical troubleshooting".

Cadillac Seville frame


frame




Ref. Dimension
Location
Ref. Dimension
Location
A 50-15/16"

Center of outboard retainer screw of no. 1 mount (radiator cradle) located approximately 5" rearward of front of frame to center of outboard retainer screw on opposite side of body.

NOTE: Removal of anchor nut, large washer and lower rubber pad may be required to gain access to center of retainer screw.
a 15”

Center of outboard retainer screw of no.1 mount (radiator cradle) located approximately 5" rearward of front of frame.

NOTE: Removal of anchor nut, large washer and lower rubber pad may be required to gain access to center of retainer screw.
B 38-1/4” Center of outboard retainer screw of no. 1 mount (radiator cradle) and center of master gage hole adjacent to no. 2 body mount on same side of body. b 9-3/4” Center of 5/8" master gage hole adjacent to no. 2 body mount.
C 61-1/8” Center of outboard retainer screw of no. 1 mount (radiator cradle) and center of 5/8” master gage hole adjacent to no. 2 body mount on opposite side of body. c 4” Center of rearmost retainer screw at no. 3 body mount (Fig. 3-12).
D 44-9/16” Between centers of 5/8” master gage holes adjacent to no. 2 body mount across body. d 4-5/16” Center of 5/8” master gage hole in compartment pan side rail adjacent to spring front support.
E 71-3/4” Center of 5/8” master gage hole adjacent to no. 2 body mount and center of 5/8” master gage hole in compartment pan side rail on same side of body adjacent to spring front support. e 15-3/4” Lower surface of compartment pan side rail at kick-up rear of rear axle housing (30-1/2” forward of center of hole “f”).
F 69-3/4” Center of outboard retainer screw of no. 1 mount (radiator cradle) and center of rearmost retainer screw at no. 3 body mount on same side of body (Fig. 3.12). f 11-1/2” Center of 3/4” hole in compartment pan side rail approximately 10” rearward of center of rear shackle attach­ing bolt to frame.
G 34-1/4” Between centers of rearmost retainer srews at no. 3 body mounts across body (Fig. 3-12). g 11-1/16” Bottom surface of dash brace adjacent to no. 2 body mount (on body).
H 81-1/2” Center of 5/8" master gage hole adjacent to no. 2 body mount and center 5/8" master gage hole in compartment pan side rail on opposite side of body adjacent to spring support. h 4-4/16” Bottom surface of body floor pan side rail at rear edge of stub frame (on body).
I 33-5/16” Between centers of 5/8” master gage holes in compartment pan side rails across body adjacent to spring front supports.
J 75-3/4”

Center of 5/8” master gage hole in compartment pan side rail adjacent to spring front support to center of 3/4” gage hole in compartment pan side rail on opposite side of body approximately 10” rearward of rear shackle attaching bolt to frame.

NOTE: Adjust pointer and lever bar if required.
K 64-13/16” Center of 5/8” master gage hole in compartment pan side rail adjacent to spring front support and center of 3/4” hole in compartment pan side rail on same side of body approximately 10” rearward of rear shackle attaching bolt to frame.
L 45-1/4” Between center (front or rear edge) of 3/4” holes in compartment pan side rails approximately 10” rearward of center of rear shackle attach­ing bolt to frame.

Technical topics

EFI Diagnosis

Troubleshoot your Electronic Fuel Injection system. This was an add-on to the Service Manual, now scanned and made available for everybody.

'76 - '79 body parts

Original bodypart numbers with drawings.

Frame diagram

The exact sizes and locations to check if the frame of the car is perfectly straight.

'77 and '78 wiring and vacuum diagrams

Wiring and vacuum diagrams for all the individual systems in the '77 and '78 Seville.

Electrical troubleshooting

I bought the '78 and '79 'Electrical Troubleshooting Manual'. Scanned the images and put it online.