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

CarComplaints.com Seal Of This Might Hurt


really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 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.

2002 Oldsmobile Alero exhaust system problems

exhaust system problem

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2002 Oldsmobile Alero Owner Comments

problem #2

Apr 262004

Alero 6-cyl

  • Automatic transmission
  • miles


2002 oldmobile Alero has failing intake manifold gasket which allows coolant to leak into engine. Estimates to repair are over $800 and after researching the fact that tens of thousands of others have the same problems with various GM vehicles manufactured from 1995-2003 I'm at a loss as to why this hasn't been taken care of. GM released bulletin 03-06-01-010 in which it suggests replacement of a "new design intake manifold gasket" which was changed to "improve the sealing qualities of the gasket". if there was no problem with the original there's no need for a replacement. GM is unwilling to repair this yet it affects 3.1 and 3.4L V6 engines of some 14 different GM models not to mention a similar affliction with the 3.8L.

- Louisville, KY, USA

problem #1

Mar 262004


  • miles
Consumer took vehicle to dealer for regular maintenance and dealer determined that vehicle needed the following replacements: A new ignition lock cylinder, intake manifold, multi function switch, and an engine oil flush. Consumer stated that when she put key in the ignition it would not turn, but did not know that vehicle would need a new switch. Also, there was ticking noise when she tried to start the vehicle.

- Merrillville, IN, USA

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