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NHTSA — Engine And Engine Cooling: Exhaust System: Manifold/Header/Muffler/Tail Pipe Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
90,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

1998 Oldsmobile Silhouette exhaust system problems

exhaust system problem

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1998 Oldsmobile Silhouette Owner Comments

problem #3

Dec 202005

Silhouette 6-cyl

  • Automatic transmission
  • 99,000 miles


: the contact stated the low coolant light illuminated and the vehicle was not warming up properly. The dealership determined the antifreeze was leaking into the oil. The manifold gasket was replaced. When the problem returned the manifold gasket was replaced a second time. Two other members of contact's family had the same things go wrong with their vehicles. The dealer won't help the contact to defray the expenses because he used an independent mechanic that once worked at the dealership. There weren't too many dealerships in the contact's area. Also, the contact knew many people who had similar engine problems.

- Maria Stein, OH, USA

problem #2

Mar 012005

Silhouette 6-cyl

  • Automatic transmission
  • 121,000 miles
Contact took vehicle to a service dealer for routine maintenance and they replaced the lower intake manifold to stop the coolant leak. The consumer stated vehicle was still leaking gasoline and coolant. The consumer did not want to have this problem repaired at the time of the routine visit. The consumer stated the service dealer had to keep the vehicle for about a month.

- Durham, NC, USA

problem #1

Mar 292001

Silhouette 6-cyl

  • Automatic transmission
  • 50,000 miles
I have just found out that my olds Silhouette has a coolant leak in the intake manifold withh only 50000 miles on the odometer. To my discuss I was informed that this is a very common and "predictable" failer. I hope that it has not caused any further damage to my engine. It would have been in the least a reasonable action on behalf of GM to give owners of their vehicles a heads up on this all to common defect.

- Independence, MO, USA

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