Truck cuts out after replacing the spark plugs and oil?

Tiny
RIVERNATIVE15
  • MEMBER
  • 2004 GMC SIERRA
  • 6.0L
  • V8
  • 4WD
  • AUTOMATIC
  • 317,217 MILES
I replaced the spark plugs and oil. Now it has a low idle and cut out when put into gear and press on the gas pedal.
Saturday, October 8th, 2022 AT 8:08 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Check to make sure by accident you didn't disconnect any engine vacuum hoses.

Here is a link that explains how to locate them:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

How low is the idle speed? Also, is the check engine light staying on when the engine is running? Do you feel any misfire (rough idle) when it is running?

Let me know.

Joe
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, October 9th, 2022 AT 5:25 PM

Please login or register to post a reply.

Related Spark Plug Replace/Remove Content

Spark Plugs and Wires Replacement GMC Sierra
VIDEO
Spark Plugs and Wires Replacement GMC Sierra
Instructional repair video
Spark Plug Replacement
GUIDE
Spark Plug Replacement
A spark plug is a vital part of the engine's ignition system and is responsible for starting the combustion process. As a part of an engine tune up, spark plugs should ...
VIEW MORE

Sponsored links