|
|
98ramdodge
Novice
Oct 12, 2011, 11:25 PM
Post #1 of 2
(2127 views)
|
i have a 2007 GMC Sierra 4x4 new body stylewith 4.8L motor. When in park at idle it idles at 700 rpm and has a little shake but u can barely feel it but its noticable and it goes away and comes and in drive the truck idles between 450-550 rpm and shakes sometimes too but not a hard shake is this normal or what? almost feels like its misfiring but no code is shown truck only has 60k miles
|
|
| |
|
|
Old 396
User
Oct 13, 2011, 2:58 AM
Post #2 of 2
(2094 views)
|
|
Re: 2007 GMC Sierra
|
Sign In
|
|
Rule out misfires and vacuum leaks. Do a scan for error codes even if the MIL is off. A scan is FREE at Auto Zone, Advance Auto Parts, and O'Reilly Auto Parts so you have nothing to lose. If a code (or codes) are present, post them so we can see them. Replace the fuel filter if not recently replaced. Try a few applications of a product called (SEAFOAM) motor treatment. Ask for Seafoam by name in a good auto parts stores. It's an excellent product that works.
|
|
| |
|
Auto Repair Home
SEARCH
WHO'S 
LOG 