Head Gasket or Intake - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-28-2006, 04:19 PM   #1
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Default Head Gasket or Intake

I have a 95 Bonne N/A, I know that almost all of these cars have had the failed intakes. I have only had one go, it was at 160,000, I now have 210,000 on my car. The car starting leaking coolant quite a bit. I loose a resevoir tank full in about 1.5 weeks. I thought it was something I did when I installed the 180 degree thermostat, but it'* not. I noticed quite a bit of the coolant coming from the front and back edge of the front head gasket area. It doesn't seem to be coming from around the upper intake base. I have no coolant in the oil, I checked yesterday during a routine change. I have no white smoke coming from exhaust. Head gasket failure doesn't seem to be too common around here. Is a failed head gasket a possibility or am I in for another Upper intake and lower intake change out.

Please help, I'm not much of a mechanic, but not too bad.

P.*. Being an engineer makes me realize that the dumba** that designed that intake must have not listened in engineering school. I woul like to kick that guy in the nuts.
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Old 02-28-2006, 04:42 PM   #2
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Default Re: Head Gasket or Intake

Quote:
Originally Posted by umrdyldo
I have a 95 Bonne N/A, I know that almost all of these cars have had the failed intakes. I have only had one go, it was at 160,000, I now have 210,000 on my car. The car starting leaking coolant quite a bit. I loose a resevoir tank full in about 1.5 weeks. I thought it was something I did when I installed the 180 degree thermostat, but it'* not. I noticed quite a bit of the coolant coming from the front and back edge of the front head gasket area. It doesn't seem to be coming from around the upper intake base. I have no coolant in the oil, I checked yesterday during a routine change. I have no white smoke coming from exhaust. Head gasket failure doesn't seem to be too common around here. Is a failed head gasket a possibility or am I in for another Upper intake and lower intake change out.

Please help, I'm not much of a mechanic, but not too bad.

P.*. Being an engineer makes me realize that the dumba** that designed that intake must have not listened in engineering school. I woul like to kick that guy in the nuts.
After reading this... I am wondering if you have ever had the lower inatke gaskets replaced? You may need to pull it all down and inspect it..

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Old 02-28-2006, 05:03 PM   #3
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I'm in agreement with Don.. Typically a head gasket doesn't leak that much or that quick unless a head is cracked. And neither head gasket or cracked head is common on the 3.8'*. Lower and upper intake gaskets...that'* a different story.
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Old 02-28-2006, 06:13 PM   #4
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Quote:
Originally Posted by BillBoost37
I'm in agreement with Don.. Typically a head gasket doesn't leak that much or that quick unless a head is cracked. And neither head gasket or cracked head is common on the 3.8'*. Lower and upper intake gaskets...that'* a different story.
im with bill on this
but a typical headgasket failure comes about with alot of heat so if you overheated the motor than i would worry about head gaskets
if not def the lower intake also replace the upper intake with a Dorman OEM replacement
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Old 02-28-2006, 07:43 PM   #5
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Sounds like the LIM gaskets. Plese don't wait until the coolant consumption increases to do the repair. If you do, you will stand a good chance of ruining the bearings in your engine.

If you haven't already read it, check out Don'* Techinfo article on this common problem: http://www.bonnevilleclub.com/forum/...e=article&k=38
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