2002 Pontiac Grand Prix Engine Missing on Startup

settergrenh · 2024-03-07T04:09:54+00:00

For the last couple weeks when I start up and take off cold, my car misses for a few then stops. there's no check engine light on so I don't know what it could be, do you?

STRAILER

✓Experienced Mechanic
55,238 POSTS

I would start with a tune up, new spark plugs and wires, also service the throttle bore and IAC. I have also seen the coil pack go bad, but I would start with the plugs and wires. This guide can help walk you through the service with instructions in the images below for your car:

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

and

https://www.2carpros.com/articles/throttle-actuator-service

Spark Plug .................... AC Type 41-940

1.52 mm (0.060 in)

Check out the images (below). Please let us know what happens.

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Mar 7, 2024 at 3:51 AM

SETTERGRENH

MEMBER
80 POSTS

Isn't ac 41-101 spark plug the right one to use?

Mar 7, 2024 at 12:23 PM

STRAILER

✓Experienced Mechanic
55,238 POSTS

The book is calling for a

Spark Plug .................... AC Type 41-940

This plug might have been superseded.

Mar 8, 2024 at 1:20 AM

STRAILER

✓Experienced Mechanic
55,238 POSTS

anything?

May 11, 2024 at 5:09 AM

Engine missing on startup?