# Service bulletin PI0235E

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10134643
- Published by NHTSA: 2018\-04\-23
- Manufacturer's number: PI0235E
- Manufacturer's date: 2013\-03\-04
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

## NHTSA's summary

This preliminary information bulletin provides a procedure to re\-align the exhaust pipe and replace the gasket to eliminate an exhaust leak or vibration/rattle noise heard approximately 900 RPM, fuel smell, white smoke, oily substance on the exhaust downpipe.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2013/MC-10134643-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2013/MC-10134643-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine, Exhaust and emissions, Exhaust manifold, pipes and muffler

## Vehicles listed

- 2011 to 2013 CHEVROLET EXPRESS
- 2011 CHEVROLET SILVERADO 1500
- 2011 to 2013 CHEVROLET SILVERADO 2500
- 2013 CHEVROLET SILVERADO 3500
- 2011 to 2013 GMC SAVANA
- 2011 to 2013 GMC SIERRA 2500
- 2011 to 2013 GMC SIERRA DENALI

## Other bulletins for the same vehicles and component

- [16NA380](/bulletins/10183132.md), 2020-11-30, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
- [16NA380](/bulletins/10178252.md), 2020-08-10, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
- [16NA380](/bulletins/10165080.md), 2019-09-23, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
- [16NA380](/bulletins/10161931.md), 2019-07-01, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
- [PI1275](/bulletins/10140360.md), 2018-06-11, Service bulletin: ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This preliminary information bulletin provides a procedure to install an air temperature sensor package kit, to correct the customer concern for reduced engine power and /or MIL illuminated.
- [16\-NA\-380](/bulletins/10137988.md), 2018-05-21, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This Technical bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
- [PI0235K](/bulletins/10137346.md), 2018-05-21, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; FUEL SYSTEM, OTHER. This preliminary informational bulletin provides repair information to correct customer concerns of an exhaust leak or vibration/rattle noise at approximately 900 RPM, fuel smell/white smoke noted intermittently \(usually after coming to a stop\), and/or an oily substance noted on exhaust downpipe.
- [PIP4112S](/bulletins/10137182.md), 2018-05-21, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle. This concern may also be present while crusing at highway speeds and then an aggressive increase in throttle.This is considered normal operation of the vehicle the throttle is delayed and opened slowly up to .7 seconds to help minimize driveline lash and clunking or will have approximately .5 seconds of zero torque to allow the transmission to shift to downshift.
- [PI\-0235\-A](/bulletins/10037311.md), 2011-05-18, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. GM: THERE MAY BE A FUEL SMELL WHEN DRIVING THE VEHICLE. THERE MAY ALSO BE AN EXHAUST LEAK OR RATTLE NOISE. \*RM UPDATED 9/10/12. \*PE UPDATED 05/3/2013 \*JS UPDATED 1/6/14. \*PE UPDATED 2/3/16. \*PE

JSON: [/v1/bulletins/10134643](/v1/bulletins/10134643)

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