Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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Intake Manifold Gasket Failure

9.3

really awful
Typical Repair Cost:
$846.00
Average Mileage:
117,188 miles
Total Complaints:
6 complaints

Most Common Solutions:

  1. replace gasket (6 reports)
1999 Oldsmobile Silhouette engine problems

engine problem

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1999 Oldsmobile Silhouette Owner Comments

problem #6

May 092002

Silhouette 3.4L V6

  • Automatic transmission
  • 58,000 miles

A D V E R T I S E M E N T S

No help from Olds with this problem whatsoever, so went to private mechanic and had the job done. Forced to use same plastic gasket, since no improved parts existed. Mechanic said torque for the manifold was 70 inch pounds, so the bolts would loosen. He used Loctite in an effort to keep problem from happening again. Fortunately the coolant leaked out onto the ground and not into the engine. It is now 2/8/10 and the car has 158000 miles on it and we had a catastrophic failure. Coolant in and out of engine. Found another mechanic who will make sure engine isn't toast before he replaces the plastic gasket with an improved version for $450-500. This happened a week after I got the car back from the GM dealer where they wanted $350 to replace the circuit board for the windshield wipers, $600 to get the rear wiper working, and charged me $180 to get the heat selector working again. FYI--when the intake manifold gasket went the first time I also had two other GM vans with the 3.4L V6 engine that failed in the same year! I will never own another GM car.

- , Traverse City, MI, USA

problem #5

Aug 182008

Silhouette ES 3400 V6

  • Automatic transmission
  • 150,000 miles

IN 2008 WE HAD TO HAVE THE INTAKE GASKET REPLACED. SINCE THEN WE HAVE SPRUNG ANOTHER LEAK. AND AS YOU CAN IMAGINE IT IS THE SAME THING, SURPRISE, SURPRISE. WELL WE LET THE VEHICLE SIT ALL SUMMER, AND CHECKED THE FLUIDS BEFORE DRIVING AGAIN. NOW THE RODS IN THE ENGINE ARE TAPPING AND THE MECHANIC SAYS THAT WE NEED TO REPLACE THE ENGINE, AND THE INTAKE. WE ALSO NEED TO HAVE THE SYSTEMS FLUSHED IN CASE OF CROSS CONTAMINATION. WE ARE A SINGLE INCOME FAMILY WITH AN 8 YEAR OLD THAT HAS SEVERE HEALTH ISSUES. NOW THAT THIS HAS HAPPENED WE ARE DOWN TO ONE VEHICLE AND GUESS WHO GETS TO SUFFER, YOU GOT IT MY LITTLE GIRL. NOW DO YOU THINK THAT THIS IS REALLY FAIR? I DON'T THINK SO EITHER. I THINK THAT GM SHOULD HAVE TO MAKE IT A MANDATORY RECALL ON THESE VEHICLES AND PAY FOR ALL COSTS AND RENTAL VEHICLES DUE TO THIS PROBLEM. THERE ARE 4 OTHER PEOPLE IN MY TOWN THAT HAVE THE SAME VEHICLE, OR SHOULD I SAY DID. PEOPLE DEPEND ON THERE VEHICLES TO GET THEM WHERE THEY NEED TO BE, WHY SHOULD WE HAVE TO FOOT THE BILL WHEN I AM SURE THAT GM KNOWS THAT THERE IS A SEVERE PROBLEM THAT HAS CAUSED THESE ISSUES. TO ALL OF US COMMON WORKING FOLK WHO CAN NOT AFFORD THOUSANDS OF DOLLARS IN REPAIRS. IT IS BETTER TO TRY TO GET A DECENT USED VEHICLE, AND WE ALL KNOW THOSE ARE FEW AND FAR BETWEEN. IF THERE IS A FIX TO THIS PROBLEM FROM GM PLEASE SOMEONE LET ME KNOW. I SURE WISH THAT THERE WAS SOMETHING THAT WE COULD ABOUT THIS, BUT AS WE ALL KNOW THAT WON'T HAPPEN. AND WHY, BECAUSE NOW THE GOVERNMENT OWNS GM NOW.

- , Sheridan, IN, USA

problem #4

Apr 092008

Silhouette ES 3.2L

  • Automatic transmission
  • 155,000 miles

Engine blew when it had 70,000 miles on it, probably because of the same intake problem. Replaced the engine and now I'm replacing intake gaskets. These are badly made.

- , Spring Arbor, MI, USA

problem #3

Nov 122007

Silhouette ES V6

  • Automatic transmission
  • 119,000 miles

A D V E R T I S E M E N T S

The first thing that happened to my vehicle was, that I was on my way going to work and the car was trying to shut down ( turn off) that is when I noticed the car running HOT. Soon as I pulled over to a parking lot the car shut off. So i tried to start it and it would not start. So my Uncle told me to let it sit overnight and we'll try to start it in the morning. So the next day we put Coolant back in it, because it had over-heated and ran out. The next day it over-heated again, so we did the same thing, by putting Coolant back in it. Two days later there was white smoke coming out. So I had it towed to a auto shop and the mechanic told me I need a head gasket. So I had that put on for $1100.00. They told me I'll have to bring it back in for 3 oil changes because the water got mixed in with the oil and that it need to be flushed about 3 times. So I took it back in, a week later. Then he told me I'll have to get the transmission flushed just in case water got into the trans., to be on the safe side (which is what I did a week after the oil change). Then I took it back in a week after the transmission flush, for an oil change. Then after a week I took it for another oil change. I did everything that the mechanic advised me of.

- , Phoenix, AZ, USA

problem #2

Mar 282007

(reported on)

Silhouette 3.4L V6

  • Automatic transmission
  • 81,129 miles

A car should not have a intake manifold gasket go out at 81,129 miles. The more research we have done it appears to be design flaws and oh well the car is past the warranty period so the customer has to eat the costs. Yea how wonderful when you have two GM vehicles lose the same gasket within 4 weeks of each other at Christmas. This should have been a mandatory recall or partial costs should have been covered by GM. This is why so many people are buying Toyota and Honda.

- , San Antonio, TX, USA

problem #1

Mar 042007

(reported on)

Silhouette GL 3.4L V6

  • Automatic transmission
  • 140,000 miles

I read where the GM coolant erodes the new plastic gasket that GM desired. There's a new gasket but only sold at GM dealers and cost significantly more.

- , Alto, MI, USA

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