Notices
86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

?Vacuum issue? 88 efi 4x4

Thread Tools
 
Search this Thread
 
Old 10-25-2021, 03:58 PM
  #1  
Registered User
Thread Starter
 
Justin662's Avatar
 
Join Date: Aug 2018
Location: Central Mississippi
Posts: 30
Likes: 0
Received 2 Likes on 2 Posts
?Vacuum issue? 88 efi 4x4

1988 4x4 , 5 speed with tach cluster , oil and coolant gauge ( temp gauge acts crazy at times but mostly just hangs down ) on cluster do not work so I have a after market installed ( feel free to give pointers on how to fix) I have a fsm and I’ve looked at so many posts and other forums and I’ve just about had it , this is my second time in the past week to re do every line and I can’t find my issue . Rough idle possible miss fire . I’ve installed a new distributor cap, rotor , plugs and wires , thermostat, fuel filter will be installed tomorrow when it shows up . Everything is Toyota oem parts . If anyone can help me out or wouldn’t mind sending me pics or posting pics of their rigs it would be greatly appreciated.








The only one I’m not sure of, fsm mentions a plug it in at high or low altitude but I’m in central Mississippi so I’m not real sure what to do here . *I did not put the screw in it *
Old 10-25-2021, 05:29 PM
  #2  
Contributing Member
iTrader: (3)
 
BigBluePile's Avatar
 
Join Date: Dec 2006
Location: Sedro-Woolley, WA
Posts: 15,184
Received 188 Likes on 131 Posts
If it's a vacuum leak, it could be anywhere. Have you gone around the engine with starter fluid and listened for rpm change? Do you have any codes? There should be a vacuum diagram in the fsm. Not sure how helpful it is. If you can find iamsuperbleeder on here, he did a pretty extensive engine rebuild that might have what you need for hose running.

I don't know why people put bolts in the vent tube for the throttle dash pot :rollseyes:
Old 10-25-2021, 05:31 PM
  #3  
Contributing Member
iTrader: (3)
 
BigBluePile's Avatar
 
Join Date: Dec 2006
Location: Sedro-Woolley, WA
Posts: 15,184
Received 188 Likes on 131 Posts
https://www.yotatech.com/forums/f116...ctures-181237/

Old 10-25-2021, 05:32 PM
  #4  
Contributing Member
iTrader: (3)
 
BigBluePile's Avatar
 
Join Date: Dec 2006
Location: Sedro-Woolley, WA
Posts: 15,184
Received 188 Likes on 131 Posts
Aaaannnddd....cluster info possibly...

https://www.yotatech.com/forums/f116...w-pics-179106/
Old 10-25-2021, 05:39 PM
  #5  
Registered User
Thread Starter
 
Justin662's Avatar
 
Join Date: Aug 2018
Location: Central Mississippi
Posts: 30
Likes: 0
Received 2 Likes on 2 Posts
Thanks!!
The following users liked this post:
BigBluePile (10-25-2021)
Old 04-17-2022, 12:39 AM
  #6  
Registered User
 
westfalia's Avatar
 
Join Date: Oct 2013
Posts: 74
Received 6 Likes on 5 Posts
That line(if it's attached to the dashpot) should have a small brown vacuum restrictor on it. I'm not sure of its real name. It regulates how fast the dashpot


lets the idle return to base idle.

Last edited by westfalia; 04-17-2022 at 12:46 AM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
4x4spaz
The Classifieds GraveYard
57
07-16-2018 03:36 PM
freddy
86-95 Trucks & 4Runners
31
12-16-2008 05:03 PM
space-junk
86-95 Trucks & 4Runners
51
10-27-2008 06:47 PM
amgraham
The Classifieds GraveYard
3
10-07-2007 01:35 PM



Quick Reply: ?Vacuum issue? 88 efi 4x4



All times are GMT -8. The time now is 11:29 PM.