1998 GMC C1500

Tiny
CATHY311957
  • MEMBER
  • 1998 GMC C1500
Engine Performance problem
1998 GMC C1500 Two Wheel Drive Automatic

gmc 1500 sierra 1998 Intake Manifold Gasket Leak? 350 Vortec
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Sunday, January 24th, 2010 AT 8:15 PM

5 Replies

Tiny
PEAR69
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Try to be more specific with your question. If the intake gasket is leaking change it.
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Monday, January 25th, 2010 AT 3:43 AM
Tiny
CATHY311957
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Thank You for your answer but its a woman thing I would like to know about how much it will cost to get repaired. The truck is in tusla ok where my son is going to school im not sure where to take it for the repair a dealer are shade tree mechanic. Im at my whits in please help me its 10 hours away from where I live. He is a big boy but because he is in school it still will come out of my pocket book. Thanks again for your help and may God Bless You!
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Tuesday, January 26th, 2010 AT 3:14 AM
Tiny
PEAR69
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I am assumeing that coolant is leaking around the lower intake - which indicates a lower intake gasket failure. The parts for this job are cheap but the labor is what costs the most. This job is labor intensive and should be done by an ASE certified mechanic. I would find a mechanic that does a lot of chevy work (like a dealer). This gasket failure is very common on these motors, and a good mechanic should have done lots of these.
Also, here is a little tip -- this job requires the removal of the distributer - (the distributer is the thing that distributes the spark to the engine). The distributer is very sensitive and does not like to be disturbed. Whoever you take this truck to, ask them if they have a scan tool that can reset the cam retard offset when the distributer is disturbed. If the mechanic says "don't worry about that, I can mark the distributer and put it back in exactly in the same spot" - or - "I can time the engine with a timing light". Then DO NOT go to this mechanic.A computer scan tool is the only way to set the timing on these engines, and unless the mechanic has a $15000.00 scan tool, then your best bet is the dealer. Tell the dealer mechanic (or who ever you have do it) that when the gasket is replaced, you want the Cam Retard Offset properly set to specification with a scan tool. (The spec. Is zero, plus or minus 2 degrees). This will make it look like you know what you are talking about.
Now the bad news -- this job will probably run 400 to 600 bucks.
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Tuesday, January 26th, 2010 AT 3:00 PM
Tiny
CATHY311957
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Thank you for being so help full. It's at a dealer. Bad news it hand to be towed 70.00, 700.00 for gasket and labor then some nipple thing replaced oil and anti frezze they said maybe 1,000.00. And now the big ice and snow storm comeing throught tusla, OK. Son said he wants to come home to texas. Has a friend that he goes to school with hes from montana he said they are leaving coming to tx cant blame them there telling them no electric for 12 days. Thanks again may god bless you and keep you in his arms.
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Wednesday, January 27th, 2010 AT 11:16 PM
Tiny
PEAR69
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There is more wrong than anticipated. The price you pay for a dealer to do the work - IMO - is worth it. Just make sure they they do all the things I mentioned. Especially with the timing. And -- thanks for the blessings, God knows I need them.

BTW - I'm from Northeast Pa. I get the extremes of all 4 seasons - summer, fall, winter, and spring.
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Thursday, January 28th, 2010 AT 12:47 AM

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