CHEVY HAVE ENGINE SERVICED

1999 Chevrolet Suburban

Tiny

kellysburb

April, 21, 2008 AT 3:35 PM

Engine Mechanical problem
1999 Chevy Suburban V8 Four Wheel Drive Automatic 55,000 miles

MY LIGHT TO HAVE MY ENGINED SERVICED SOON CAME ON FOR THE FIRST TIME THIS MORNING AND AS I NOTICED THE LIGHT I ALSO NOTICED THE SUBURBAN WAS RUNNING VERY ROUGH WHEN I APPLIED THE GAS. I HAVE MY TRUCK SERVICED REGULARLY AND IT ONLY HAS 55,000 MILES ON IT. CAN YOU TELL ME WHAT PROBLEM I MIGHT BE LOOKING AT?

FOUND 4487 RELATED QUESTIONS

Running Rough

27 ANSWERS
34 IMAGES

Idles Rough/changed Ects

37 ANSWERS
3 IMAGES

3 Answers

Tiny

merlin2021

April, 21, 2008 AT 3:45 PM

Not yet! Do this and we can try! First thing you need to do is have the codes read, Autozone does it free, Post the results with the code number(s). Even if the service engine light is not on, there should be freeze frame data stored.
If it won't make it to Autozone, buy a cheap scanner, they can be had for 30-40 dollars, a good investment, since they cover all cars sold in the USA from 96 on.

Tiny

kellysburb

April, 21, 2008 AT 4:30 PM

I FOUND OUT THAT THE CODE SAYS IT HAS A MISFIRE

CAN YOU TELL ME WHAT IS NEEDED IN THIS CASE.

Tiny

merlin2021

April, 21, 2008 AT 5:22 PM

A cylinder is not firing. There are several misfire codes. P0300 is random, P0301, 302, 303, 304, 305, 306, 307, and 308 can tell you if it's in only one cylinder, which code was it?

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