Cadillac Owners Forum banner

1 - 4 of 4 Posts

·
Registered
2011 Escalade ESV Premium 2WD
Joined
·
28 Posts
Discussion Starter #1 (Edited)
Ok - 2011 Escalade, 177,xxx miles. Has been a great truck - no issues other than a recent bad oil pressure sensor - tripped codes and random misfire coes. Replaced with new AC Delco part with filter and no more codes are being thrown. Also, about one year ago I replaced the Throttle body with new AC Delco part due to thrown code for issue with Throttle body sensor failure.

However, the truck still skips / misfires at idle but does not throw any codes. I Replaced plugs and wires with AC Delco parts. Still skipping at idle.

I order and replaced all the coils with AA Ignition coils bought online https://www.amazon.com/gp/product/B01N7QNJT1/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1 . Still have an intermittent skip or misfire at idle. Runs fine at speed and under load - it is just at idle.

What am I missing here?
 

·
Registered
Joined
·
25 Posts
The highest percentage cause would be a vacuum leak. Mine had loose fitting PCV hose connections from the driver's side valve cover location to the intake manifold.
 
1 - 4 of 4 Posts
Top