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5.3

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
18,000 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.

2005 Chevrolet Suburban exhaust system problems

exhaust system problem

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2005 Chevrolet Suburban Owner Comments

problem #1

Jul 232005

Suburban 4WD 8-cyl

  • Automatic transmission
  • 18,000 miles

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

This is a pre-cautionary complaint as a result of my shock regarding GM's 8.1L engine in the Suburban. Also would apply to Silverado hd as well. The vehicle is using excessive oil which to my surprise GM says is normal. Oil usage is 1.25 qts per 2000 miles and GM indicated that the vehicle could use as much as 1qt per 1000 miles (assuming 10 miles to the gallon). The concern is regarding emissions durability and indirect failures as a result of this oil loading into the exhaust and catalytic converter. GM would not provide details to me but, industry norms are assuming worst case 1/2 of this level of expected oil usage. GM was unconcerned and has a bulletin for their dealers stating this. I feel this should be investigated both from a safety standpoint for potential engine failure and for emissions durability and environmental compliance.

- Brighton, MI, USA

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