1st gen 4runner power loss
03-27-2018, 04:30 PM
#1
Registered User
Thread Starter
Join Date: Mar 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
1st gen 4runner power loss
Alright guys I know these power loss threads are pretty repetitive, but I was not able to find one with my exact problem so I thought id see if anyone had experienced it before. The scenario is this... last month I bought an 86 4runner off craigslist that had sat for about 8 years and was not running. I replaced fuel pump, fuel filter, removed and cleaned throttle body and intake manifold and replaced the gasket before reinstallation. After completing all that the truck started right up and ran great with plenty of power through all five gears. After driving it about 20 miles it has developed a problem with power in third gear. First and second gear I have full range of acceleration, but once I'm in third the engine craps out at about 3000 rpms with the pedal to the floor. It doesn't even give me enough power to make it out of third gear. 
I checked the timing belt guides and both were intact and everything seemed to be as it should. Anything other suggestions?
I checked the timing belt guides and both were intact and everything seemed to be as it should. Anything other suggestions?
03-27-2018, 05:40 PM
#2
Registered User
Does it just refuse to rev further in third gear or does it stumble or hesitate?
03-27-2018, 07:14 PM
#3
Registered User
Thread Starter
Join Date: Mar 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
It runs cleanly up to right at 3000 rpms, but at that point acceleration slows to almost a complete stop. It doesn't bog down or anything it just wont accelerate enough to get an increase in rpms.
03-27-2018, 07:56 PM
#4
Vehicle stats..? 22re, manual transmission?
It was parked eight years ago for a reason, do you have any background?
What did the tank look like? Did you clean it? Did you reseal it?
How about compression once it warms up?
Clean shiny ground for the ignitor?
Plugs and leads?
Rats nest in the air box?
It was parked eight years ago for a reason, do you have any background?
What did the tank look like? Did you clean it? Did you reseal it?
How about compression once it warms up?
Clean shiny ground for the ignitor?
Plugs and leads?
Rats nest in the air box?
03-27-2018, 10:53 PM
#5
Addendum..
It was running fine in all gears then developed the problem..
After thoughts..
Inspect the exhaust system specifically the catalytic converter and muffler (drop the intermediate pipe off the exhaust manifold).
If you are getting the full RPM range in other gears it's still more likely the fuel problem.
After thoughts..
Inspect the exhaust system specifically the catalytic converter and muffler (drop the intermediate pipe off the exhaust manifold).
If you are getting the full RPM range in other gears it's still more likely the fuel problem.
03-28-2018, 04:24 AM
#6
Registered User
Plugged cat is a good thought. It will be very Hot! After driving.
id check the Air Flow Meter door for full unrestricted movement also.
id check the Air Flow Meter door for full unrestricted movement also.
03-28-2018, 06:10 AM
#7
Registered User
Thread Starter
Join Date: Mar 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Hey guys thanks for all the responses! The truck has the 22re with a five speed. About 11 years ago the previous owner drove it to Florida from Cali and then shortly after started developing health issues which prevented him from driving it. I have the paperwork that shows he had the engine rebuilt (cylinders and pistons) less than 30,000 miles ago. When I replaced the fuel pump I also cleaned the tank to a prettt decent condition and replaced the inline filter and tank seal. I will check the exhaust system because it did smell like it was getting hotter than it should. I also forgot to mention there is a noise that occurs when this is happening that sounds almost like an exhaust manifold leak. As far as I can tell it’s only audible right around the same time the engine loses acceleration..
Trending Topics
03-28-2018, 10:40 AM
#8
Registered User
Well, restricted cat very well could result in exhaust leaks ahead of it...good luck!
Thread
Thread Starter
Forum
Replies
Last Post
madfie
86-95 Trucks & 4Runners
3
12-29-2014 07:16 PM
2 da max
95.5-2004 Tacomas & 96-2002 4Runners
11
12-22-2011 01:12 PM
toyospearo
Pre 84 Trucks
18
04-16-2011 02:29 PM
