Intake manifold

Tiny
GARYW
  • MEMBER
  • 1997 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 240,000 MILES
I have a '97 silverado 5.7 350. I have a leak on the lower intake manifold gasket. I have to remove the upper intake to get to the lower. All bolts removed, wiring disconnected, fuel line disconnected. The manifold will slide around but will not lift off. There are no bolts holding it down. What am I missing?
Wednesday, February 16th, 2011 AT 10:13 PM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I'm sending the instructions. The center elelctrical piece may be holding you up though.
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Wednesday, February 16th, 2011 AT 11:55 PM
Tiny
GARYW
  • MEMBER
  • 4 POSTS
I got the instructions you sent, thank you. The manual that I am using says essentially the same thing you sent. It is a Chilton and not a Mitchell but the info was the same. You mentioned the center electrical piece, I think that has to be the problem but I do not know what to do with it. I guess that is really the question.
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Thursday, February 17th, 2011 AT 4:00 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check for screws around the center piece, bu tit should push through the plastic piece. There is an oring around it that should be replaced when you reinstall it but it shoudl come witht ehintake gasket set.
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Thursday, February 17th, 2011 AT 2:40 PM
Tiny
GARYW
  • MEMBER
  • 4 POSTS
Thanks hmac300. I used a pair of channel locks to squeeze the tabs of the CFSI and the manifold pulled off right over top. Now it's time of go and figure out and fight getting off the compressor bracket. One last manifold bolt to go and its under the bracket. I hate this truck. Nothing but problems since new. Mostly electrical. It will leave you on the side of the road in a heartbeat. Trucks are trucks and you just gotta take the good with the bad but this pig had been nothing but a pain in the ass. No wonder GM needed a bail out after building pieces of **** like this. Just my luck.
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Sunday, February 20th, 2011 AT 8:28 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Here are some tips, I thought I sent these the last time so you odn'tneed to remove the bracket. Your truck may have the fuel pupmp wiring problem that requires a different connector and about a foot of wiring harness. Sorry for your problems, I worked for GM in engineering for 32 years and alot of problems we tried to solve.
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Sunday, February 20th, 2011 AT 8:46 PM

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