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

Loss of power in 4runner.

Old 04-30-2010, 10:03 AM
  #1  
Registered User
Thread Starter
 
robnkim's Avatar
 
Join Date: Feb 2010
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Question Loss of power in 4runner.

I have a 94 4runner 3.0 4 wheel drive that is running bad. We bought two. The good one had a bad motor that appears to have been from a 90-91 model and a wrecked one, 94, with good motor.

We put on a new timing belt and seems to be in time. Ran good but started getting weak after awhile. Now it runs terrible and has no power. Drinking gas like a sponge on water.

Blew the return water hose. Had issues with the oil cooler on the drivers side lower part of the block when we first started the engine. Clogged. Seems that it has another issue with clogging, hence the hose.

We remove the MAF from the wrecked truck and replaced it. Not sure if that helped or not. We also replaced the hose going from the engine to the MAF. That seemed to help a little bit, but still didn't solve the problem. Plugs look fine, oil looks good. Loosing water at a slow rate, just sitting. It does great up to about 45, then it feels like I'm trying to pull my house down the road. I go 0 to 60 in 5.3.... MINUTES!

PLEASE HELP!!!
me-><--my 4runner
Old 04-30-2010, 10:26 AM
  #2  
Registered User
iTrader: (1)
 
OrRunner's Avatar
 
Join Date: Mar 2009
Location: Oregon
Posts: 697
Received 9 Likes on 5 Posts
i would double check the timing, as far as the leak of water, maybe the water pump? had small water leak and it turned out to be the water pump going out, did the timing again while we were in there due to the runner feeling weak, and low and behold it just needed timing again...hope this helps a little!
Old 05-04-2010, 01:25 PM
  #3  
Registered User
Thread Starter
 
robnkim's Avatar
 
Join Date: Feb 2010
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Thanks, we're rechecking that tonight. I'll post the results on it hopefully tonight or in the morning.
Old 05-04-2010, 01:36 PM
  #4  
Registered User
 
a4runnerfreak's Avatar
 
Join Date: Jul 2008
Location: Grew up in S.C.V, So Cal.....now in Hampstead, NC
Posts: 4,592
Likes: 0
Received 0 Likes on 0 Posts
[QUOTE=robnkim;51434634] Drinking gas like a sponge on water.

Check the o2 sensor.....
Old 05-04-2010, 01:37 PM
  #5  
Registered User
 
a4runnerfreak's Avatar
 
Join Date: Jul 2008
Location: Grew up in S.C.V, So Cal.....now in Hampstead, NC
Posts: 4,592
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by robnkim
Drinking gas like a sponge on water.
Check the o2 sensor.....
Old 05-05-2010, 05:11 AM
  #6  
Registered User
Thread Starter
 
robnkim's Avatar
 
Join Date: Feb 2010
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
We didn't get around to checking the timing last night, but still planning on doing it.

Would the o2 sensor trigger a code? Also how would I check it without replacing it?

Thanks!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Sleaker
86-95 Trucks & 4Runners
17
08-26-2020 06:03 AM
Ironmike4x4
95.5-2004 Tacomas & 96-2002 4Runners
5
02-03-2016 11:13 AM
tj884Rdlx
Newbie Tech Section
25
08-28-2015 12:04 PM
tomczaksdiesel
86-95 Trucks & 4Runners
0
07-26-2015 10:35 PM
gmonnie123
86-95 Trucks & 4Runners
2
07-26-2015 02:44 PM


Thread Tools
Search this Thread
Quick Reply: Loss of power in 4runner.



All times are GMT -8. The time now is 06:21 PM.