1998 Chevrolet Lumina intake manifold

Tiny
JEEPSTER94
  • MEMBER
  • 1998 CHEVROLET LUMINA
  • 248,000 MILES
I have a 1998 chevy lumina and I am replacing the intake manifold gasket due to leakage. I no longer have manuals for the car. I need to know what are the torque specificatons and bolt patterns are for the intake manifold on a 1998 chevy lumina? Please help
Saturday, September 21st, 2013 AT 9:40 PM

2 Replies

Tiny
JEEPSTER94
  • MEMBER
  • 7 POSTS
It is also a 3.8l
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Saturday, September 21st, 2013 AT 9:47 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Tighten the vertical lower intake manifold bolts (the four middle ones) to 7 N.M (62 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to 7 N.M (62 lb in). Tighten the vertical lower intake manifold bolts (the four middle ones) to 13 N.M (115 lb in). Tighten the diagonal lower intake manifold bolts (two on each end) to 25 N.M (18 lb ft). Upper intake 18 ft. Lobs.
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Sunday, September 22nd, 2013 AT 6:04 AM

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