Model Identification

Vehicle model can be identified by the fifth character of Vehicle Identification Number (VIN). See MODEL IDENTIFICATION . VIN is stamped on a metal pad at top left of instrument panel, near windshield.

MODEL IDENTIFICATION

Series ⁽¹⁾

Model

"C"

2WD Pickup, Sierra

"G"

⁽²⁾ Van

"K"

4WD Pickup, Sierra

"L"

AWD Astro & Safari

"M"

2WD Astro & Safari

"S"

2WD Blazer, Jimmy, S10 Pickup & Sonoma

"T"

4WD Blazer, Jimmy, S10 Pickup & Sonoma

⁽¹⁾	Vehicle series is fifth character of VIN.

⁽²⁾	Includes Rally Van and Vandura.

VACUUM DIAGRAM REFERENCE

Engine & Vehicle Series	Application	Trans.	Fig. No.
"C" & "K" Series	Calif.	Automatic	1
"C" & "K" Series	Calif./Federal	Manual	2
"G" Series	Calif./Fed./High Alt.	All	3
"G" Series	Calif./Federal	Automatic	4
"L" & "M" Series	Calif./Federal	Automatic	5
"P" Series	Calif./Federal	All	6
"S" & "T" Series	Calif./Federal	All	7
"S" & "T" Series	Federal	All	8
"S" & "T" Series	Calif./Federal	All	9
"S" & "T" Series	Calif./Federal	Automatic	10