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9.3
really awful- Typical Repair Cost:
- $80
- Average Mileage:
- 129,700 miles
- Total Complaints:
- 3 complaints
Most Common Solutions:
- not sure (2 reports)
- replace the ecu (1 reports)
engine problem
Helpful websites
- No one has added a helpful site for this 1999 Tahoe problem yet. Be the first!
A D V E R T I S E M E N T S
My Tahoe when under load and accelerating would Loose power and backfire, knock, and ping this happened for years and every time I took it into the shop to get it fixed nothing was found to be wrong. So one day I was diagnosing another problem a rough Idle a government mechanic suggested that I get the ECU tested at auto Zone (for free). It Failed but the truck still worked. It was explained to me that it would still work but it would bleed voltage and cause the Idle to be rough and possibly cause misfires. it cost me $75.00 to replace the ECU and the truck has been working great I have not tested it under load yet but as far as it is running now I'm sure that the other problem is gone as well. good luck with yours.
- Terry S., Bremerton, WA, US