Replaced Timing belt on a 4.7 v8 now will not idle

4High

New member
2003 4.7 v8 162000 miles just replaced the timing belt and all parts. Engine runs but will not idle, I double checked the belt to make sure that all marks are in line. Acts like its just the timing off. any ideas?
 
Register to hide this ad
2003 4.7 v8 162000 miles just replaced the timing belt and all parts. Engine runs but will not idle, I double checked the belt to make sure that all marks are in line. Acts like its just the timing off. any ideas?
Unless you forgot to re install spark plugs, the timing is off. Time to tear it back apart.
 
2003 4.7 v8 162000 miles just replaced the timing belt and all parts. Engine runs but will not idle, I double checked the belt to make sure that all marks are in line. Acts like its just the timing off. any ideas?

What exactly do you mean it will not idle?

Does the vehicle just not want to idle and tries to stall out but runs fine when you rev it a little above 1,000RPM.

OR

Does the vehicle run poorly/possibly misfire at higher RPMs?
 
[MENTION=118170]4High[/MENTION]

Give this a shot:

Disconnect the Battery for about 10minutes (while you're waiting clean the MAF and Throttle Body) then reconnect it and let the vehicle run for about 5-10minutes with no loads (no lights, radio, A/C, ect.)

Chances are you did not let the vehicle relearn idle properly after you reconnected the battery (also if the throttle body is dirty, it will affect how it learns idle and at 169k I would suspect it's dirty.)

Give that a shot and get back to us.
 
Timing belt/idle fixed

This worked by cleaning and giving the computer time to adjust
Thanks for all the help
 
That's awesome! I bet you were happy about that! I'm about to do mine, and that's something that would happen to me.
 

Members online

Forum statistics

Threads
278,316
Messages
3,554,120
Members
248,016
Latest member
Advally Service

Trending content

Back
Top