Question about 1990 Toyota 4Runner

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1990 toyota 4runner power loss

Trouble starting in the morning, I have been losing power from start off and up hills, I have replaced the air filter, the clean air intake hose, distibuter cap and rotor, plugs, efi relay, and it seems like everytime I replace something it gets worse

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You diagnose & find problems first,then
replace parts if they fail a test

Posted on Jan 06, 2013


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Problem with the 1990 Toyota

sounds like it is out of time for the running part and it could also make it run a little on the warm side

Posted on Jun 16, 2011

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SOURCE: car doesn't have any power

This happened to me and yes it was caused by a timing belt i replaced it and guess what? My car took forever to pick up speed but once i hit 30mi than it was fine. So i found that one valve was bended so i had to rebuild the heads now its fine one way to find out if you have a faulty valve is by unpluging one of the spark plugs wires you are probably running on 3 cylinders thats why it has no power until it reaches some speed then its fine but when you stop and try to go again it does the same thing i recomed 4 you to go check the heads i bet thats what is wrong with your car. Youll end up paying arround 500 bucks! ! Parts and labor but its a. 1990 celica worth it? Yes its the best car i have ever owned!! And if it happens again i will fix it i love my celica! !

Posted on Sep 20, 2012

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1990 toyota 4runner knocking noise from air intake will turnover but wont start

Knocking noise in the air intake or do you mean a lifter noise,because you let it sit the lifter are not charged up or solidified,so you dont get adequate compression when you turn it over.if you have fuel and spark thats fine what about compression,noise from the air intake make me wonder if the timing belt is intacted.

Feb 04, 2013 | 1990 Toyota 4Runner

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1990 toyota truck 6 cyl. automatic, wont start loses power , can't go up hills when warmed up

Hi Eric, Have a diagnostic scan carried out and the catalytic converter checked for blockage. Regards John

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I have a 1990 toyota pickup Delux 22re 2wd. idle is normal, when begin to accelerate this all changes it a sound the can not be explained in words.all most like i am getting the air but not the fire when i...

1. check your fuel filter and replace
2. this sounds to me like you are losing power due to your valves being out of adjustment, valve lash adjustment should be checked at every tune up on this motor
3. a manual on this vehicle would be a great asset to you

Oct 02, 2010 | 1990 Toyota Pickup

2 Answers

It loses power on acceleration and serious loss of power on hills

sounds like a clogged fuel filter. you need to have the engine pressure checked for leaks, you can rent the pressure checker at autozone, it connects to ur radiator and u pump pressure into the cooling system if u find water leaking around the head u know u have a blown head gasket. if ok then check the cylinder compression should beable to rent this also. it screws into the spark plug holes has a gauge on it. alternator problem w/ the light is probaly you need to tighten the belt.hope this helps!!!

Apr 15, 2010 | 1990 Toyota Camry

1 Answer

Car loses power espesially on high way struggles on hills even with momentum only recently happened

timing could be off plugged fuel filter or failing fuel pump my best guess would be plugged cat converter i have seen it a hundred times generally runs good up to about 30 mph or so but on hills it wants to stop try un bolting exhaust before converter and test driving its loud but a quick sure test

Feb 18, 2010 | 1990 Toyota 4Runner

1 Answer

Loss of power, transmission not shifting

i know the camp verde hill of which you speak , last vehicle in the shop with that same scenario , after doing everything possible including a catalyst check , as we could not duplicate the problem , we replaced fuel pump at owners request and next trip he confirmed it was a fix .

Jan 13, 2009 | 2001 GMC Sierra 2500HD

1 Answer

Transmission shifts into 5th gear and loses power

start checking the trans fluid level, a trans filter change and trans flush should help.

Dec 05, 2008 | 1990 Toyota 4Runner

1 Answer

Will not start

potential water in line. Red, plastic bottle of Gas treatment first. STP gas treatment highly rec. Definitely make sure you do not have any more gas leaks since the system relies on pressure. Any loss in pressure results in loss of fuel to injectors/carb. Start with the gas treatment first... go from there. Sounds retarded but believe me, this has helped countless people... including myself multiple times.

Afterwards, you will need to think on terms of electrical ignition problems:

HV coil

HV coil wire

clogged filter or reversed direction filter [recheck even though it is new]

Oct 15, 2008 | 1990 Toyota 4Runner

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