Water Collecting Inside Of Muffler Causing A Hard Or No Start

NHTSA ID Number: 10161945

Manufacturer Communication Number: 19NA097

Summary

This technical bulletin provides repair information to correct a customer concern of Water Collecting Inside of Muffler Causing a Hard or No Start.

4 Affected Products

Vehicle

CHEVROLET

SUBURBAN

2016-2019

Bulletin No.: 19-NA-097
Date: May, 2019

https://www.nhtsa.gov/recalls?nhtsaId=10161945

https://static.nhtsa.gov/odi/tsbs/2019/MC-10161945-9999.pdf

To View or Download this Document Click Here

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Involved Region or Country	North America, N.A. Export Regions
Additional Options (RPOs)
Condition	Some customers may comment on water collecting in the muffler after a rainstorm or washing the vehicle. If it is allowed to set during freezing temperatures it can cause a no start due to ice buildup.
Cause	The cause of the condition may be the angle of the exhaust pipe allows water to travel back to the first bend after the axle. This happens as the water flows down the back of the vehicle over the rear fascia.
Correction	Drill a small hole at the lowest point of the exhaust pipe after it goes over the axle and starts towards the back of the vehicle.

Labor Operation	Description	Labor Time
*4086978	Drill drain hole in the exhaust pipe	0.5 hr
*This is a unique Labor Operation for Bulletin use only.

Version	1
Modified	Released May 09, 2019