Asked by Pacheco67 Jul 12, 2015 at 10:19 PM about the 2004 GMC Sierra 1500 4 Dr SLE 4WD Crew Cab SB
Question type: Maintenance & Repair
No oil leaks on the floor. There was some oil on one of the plugs. Truck started to miss the other day and I changed the plugs but the check engine is still on. Any ideas on what else this could be?
Getting a P0304 code. So 4th cylinder misfire. I have no idea what could be wrong. One minute I was driving along and the next minute the truck is jerking and the check engine light is flashing. Anyone? Is this common?
I wish I could help you sooner. Replace spark plugs with the correct gap. Incorrect gap can cause a misfire and a wire set boot not properly seated on the plug. Loss of power could indicate a clogged fuel filter or a spark plug wire melting from the heat of the block. A hot motor can melt a wire. Use plastic tiles to keep wires away. Compression timing may be off too. I hope this helps.
No oil leaks on the floor. There was some oil on one of the plugs. Truck started to miss the other day and I changed the plugs but the check engine is still on. Any ideas on what else this could be?
2004 GMC Sierra 1500 4 Dr SLE 4WD Crew Cab SB
-
Maintenance & Repair
4wd will not engage light blinks on 4 high then go back to 2wd.can hear it trying to engage but wont.never has a service 4wd apeared or any thing about 4wd.worked on auto and 4wd high couple weeks ag...
2004 GMC Sierra 1500 4 Dr SLE 4WD Extended Cab LB
-
Maintenance & Repair
I have changes the plugs, wires, cap and rotor button, also changed tp sensor. The truck does not miss when just setting and idling or even Revving it up, only during driving, notice it will star...
1998 GMC Sierra 1500 K1500 SL 4WD Extended Cab LB
-
Maintenance & Repair
I need it to stay running! I dependable truck is what I need!
1993 GMC Sierra 1500 C1500 SLE Standard Cab LB
-
Maintenance & Repair
2008 GMC Sierra 1500 SLE1 Crew Cab
-
Maintenance & Repair
Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.