3.4 L problems
07-08-2009, 12:17 PM
#21
Registered User
Join Date: Jun 2009
Location: Victoria
Posts: 21
Likes: 0
Received 0 Likes
on
0 Posts
ERG Valve????? Sometimes if you are getting that hesitation under acceleration it is because the EGR system is not shutting off. On the other hand if it is the EGR your truck should not being idling smoothly.
You can do a test to see if it is the EGR valve. (this is strait from the Haynes manual). With the truck running, disconnect the vacuum hose from the EGR valvle and connect it to a vacuum pump, apply a vacuum directly to the EGR valve, the truck should run rough or stall, if it doesn't than it is suspect.
Just another thing to rule out?
Hope you find the problem.
You can do a test to see if it is the EGR valve. (this is strait from the Haynes manual). With the truck running, disconnect the vacuum hose from the EGR valvle and connect it to a vacuum pump, apply a vacuum directly to the EGR valve, the truck should run rough or stall, if it doesn't than it is suspect.
Just another thing to rule out?
Hope you find the problem.
Last edited by Vicfire; 07-08-2009 at 12:19 PM.
07-08-2009, 01:51 PM
#23
Registered User
Thread Starter
Join Date: Jul 2004
Location: lenoir, NC
Posts: 420
Likes: 0
Received 0 Likes
on
0 Posts
07-08-2009, 05:07 PM
#24
Registered User
Join Date: Jun 2009
Location: Victoria
Posts: 21
Likes: 0
Received 0 Likes
on
0 Posts
07-10-2009, 02:37 PM
#27
Registered User
Thread Starter
Join Date: Jul 2004
Location: lenoir, NC
Posts: 420
Likes: 0
Received 0 Likes
on
0 Posts
Update!! My previous mechanic apparently didnt know what he was doing..He said it had zero compression..My new Toyota mechanic said it had 140..which isn't great but its better than zero...so it uses oil and it smokes the first 5 minutes of driving..i can live with that for a while..Now for the hesitation problem. I unplugged my new O2 sensor and now the #5 cylinder is getting fire and it runs like a dream. I tried two O2 sensors with no CEL light and continued to have the hesitation..so I'm guessing its a wiring problem or something..so I'm leaving it unplugged and driving the hell out of it!!!
and he said if he had to re-ring the pistons he wouldnt warranty it beacuse of the way my truck was built for offroad.... basterd
and he said if he had to re-ring the pistons he wouldnt warranty it beacuse of the way my truck was built for offroad.... basterd
Last edited by bain; 07-10-2009 at 02:41 PM.
Thread
Thread Starter
Forum
Replies
Last Post
Flying91
86-95 Trucks & 4Runners (Build-Up Section)
45
04-11-2024 04:39 PM
WTB[PacNorWest]: WTB - Tacoma/4runner 3.4 Charcoal canister and igniter
94whiterunner
Items Wanted
0
07-12-2015 07:15 PM
