Engine Block - Left Side View

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine Block - Left Side View

Courtesy of GENERAL MOTORS CORP.

Service Hole Location	Thread Size	Drill	Counterbore Tool	Stop Collar	Tap	Driver	Insert	Drill Depth (Max)		Tap Depth (Min)
-								mm	(in)	mm	(in)
1	M 10 x 1.5	211	212	n/a	213	214	420	33	1.3	27	1.063
2	M 10 x 1.5	211	212	n/a	213	214	420	33	1.3	27	1.063
3	M 6 x 1	201	202	n/a	203	204	205	22	0.866	18	0.709
4	M 12 x 1.75	856	857	n/a	858	859	416	33	1.3	17	0.669
5	M 24 x 1.5	n/a	n/a	n/a	n/a	n/a	n/a	30	1.182	20	0.788
6	M 10 x 1.5	211	212	n/a	213	214	420	33	1.3	27	1.063
7	M 28 x 1.25	n/a	n/a	n/a	n/a	n/a	n/a	25	0.985	17	0.669
8	M 10 x 1.5	211	212	n/a	213	214	420	33	1.3	27	1.063
9	M 10 x 1.5	211	212	n/a	213	214	420	33	1.3	27	1.063
10	M 8 x 1.25	206	207	n/a	208	209	210	25	0.985	20	0.788
11	M 6 x 1	201	202	n/a	203	204	205	25	0.985	20	0.788
12	M 8 x 1.25	206	207	n/a	208	209	210	25	0.985	20	0.788
13	M 8 x 1.25	206	207	n/a	208	209	210	25	0.985	20	0.788
14	M 6 x 1	201	202	n/a	203	204	205	19	0.748	15	0.591
15	M 8 x 1.25	206	207	n/a	208	209	210	25	0.985	20	0.788
16	M 10 x 1.5	211	212	n/a	213	214	420	25	0.985	20	0.788
17	M 8 x 1.25	206	207	n/a	208	209	210	19	0.748	15	0.591
18	M 10 x 1.5	211	212	n/a	213	214	420	33	1.3	27	1.063
19	M 8 x 1.25	206	207	n/a	208	209	210	33	1.3	27	1.063
20	M 6 x 1	201	202	n/a	203	204	205	22	0.866	18	0.709
21	M 10 x 1.5	211	212	n/a	213	214	420	33	1.3	27	1.063
22	M 10 x 1.5	211	212	n/a	213	214	420	33	1.3	27	1.063
23	M 10 x 1.5	211	212	n/a	213	214	420	33	1.3	27	1.063
24	M 10 x 1.5	211	212	n/a	213	214	420	33	1.3	27	1.063