Code reader help

Lizooki

Lizooki

Samurai Frogger
Joined
Mar 21, 2005
Location
Stokes Co. NC
Anyone in Winston Salem (hopefully near Walnut Cove or Rural Hall) have a live data capable code scanner?
I'm having P0300 issues .... random/multiple misfire on a 2004 Chevy Trailblazer.

Mind helping a brother out?

Matt
 
I'm assuming it's a 4.2 straight six.

Pull the coil packs off of the spark plugs, specifically the rear three. See if they're full of water. If so, you need a new hood cowl seal. There's an updated GM one that seals muuuuch better and is actually pretty cheap.
 
What kind of live data are you wanting to get? There are a number of really inexpensive gizmos you can plug into that talk to a phone app via Bluetooth. Then its really just a matter of having the right app.
 
Already had all the coils out. No water. No oil saturation either.
Rat .... P0300 is a random/multiple misfire ..... so I need to read individual cylinder live data to see which coil(s) may be bad.

Matt
 
those engines also had valve spring/seat issues if I remember right.

valve springs weren't heavy enough and over time became weak causing seat issues, essentially valve float

there was a recall for this, might see if you're still covered if this is the case
 
Back
Top