David Schmidt
Member
I've been trying to get my 2003 V6 to run smooth for 2 years now. 92,000 miles. Symptoms are it burps or misses often. The burp sound is the sound you get with the K & N intake it. It burps at idle every once in a while but its when it gets a load I get a miss. All conditions. Change from Park to Drive or Drive to Park - "burp". Turn steering wheel all the way to put load on pump "bump". Lights come on and alternator gets a load "burp". Press the gas and "burp". Biggest annoyance every time the a/c engages or disengages "burp". Any type of engine load. I give up..
IAC replaced 10K ago. New iridium spark plugs at 60K. New wires and Screaming Demon coil installed. New factory EGR valve installed. Two new upstream Oxygen sensors installed. Removed throttle body and super cleaned everything. Cracked elbow replaced head to toe and new pcv valve installed. New fuel filter installed. Sea Foamed a couple of times. Not sure what I'm dealing with - electrical issue, vacuum issue, valve issue, fuel issue. The truck gets GREAT gas mileage at 17.9-18.3 mpg, hauls butt, starts up instantly, goes great down the road. I do notice if I manually hit the throttle to like 1500 rpm or whatever and the a/c clutch engages / disengages I can still feel the "burp" a bit so its not just at idle but thats the only time you can hear and feel it when driving. What did I leave out?
IAC replaced 10K ago. New iridium spark plugs at 60K. New wires and Screaming Demon coil installed. New factory EGR valve installed. Two new upstream Oxygen sensors installed. Removed throttle body and super cleaned everything. Cracked elbow replaced head to toe and new pcv valve installed. New fuel filter installed. Sea Foamed a couple of times. Not sure what I'm dealing with - electrical issue, vacuum issue, valve issue, fuel issue. The truck gets GREAT gas mileage at 17.9-18.3 mpg, hauls butt, starts up instantly, goes great down the road. I do notice if I manually hit the throttle to like 1500 rpm or whatever and the a/c clutch engages / disengages I can still feel the "burp" a bit so its not just at idle but thats the only time you can hear and feel it when driving. What did I leave out?