Stumped! 5.2 runs rough, backfires then stalls...
#11
Clean the throttle body.....
Disconnect battery.
Remove all electrical connections and cables from throttle body.
four bolts hold it on. pull 'em out.
On the back side of the throttle bores, is the passage for idle air. IAC motor bolted to the back side of the throttle body. Remove the IAC, and CLEAN THE SNOT out of those passages.
Reinstall everything, hook the battery back up, start the truck, see if it will idle on its own. If you have a friend handy, have him/her start the truck while you watch the pintle on the IAC, it should move in and out smoothly, to control idle speed, if it doesn't, replace it.
Disconnect battery.
Remove all electrical connections and cables from throttle body.
four bolts hold it on. pull 'em out.
On the back side of the throttle bores, is the passage for idle air. IAC motor bolted to the back side of the throttle body. Remove the IAC, and CLEAN THE SNOT out of those passages.
Reinstall everything, hook the battery back up, start the truck, see if it will idle on its own. If you have a friend handy, have him/her start the truck while you watch the pintle on the IAC, it should move in and out smoothly, to control idle speed, if it doesn't, replace it.
#12
#13
#14
Brought the truck home tonight. Put the exhaust back on and gonna pull the TB tomorrow and clean it. But would that cause a vaccum issue? When I push down on the brake pedal it gets soft and spongy. Re-blead them and still soft. Also as I able pressure it wants to stall bad. Not sure if everything could be related?
Last edited by SvrdRam; 08-09-2011 at 10:20 PM.
#15
#16