20 Most Recent 1990 Toyota 4Runner - Page 5 Questions & Answers

Hi if that happens in the morning when the engine is cold please try a different grade engine oil talk to you part supplier. thnx

Could be fuel filter,tune up,coils,air filter.

Fan clutch most likely went bad

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.

normally in the thermostat housing or very close by check by removing the wire and have some watch the temp gauge for you as to touch the terminal to the head I fthe gauge responds quickly the gauge is ok. remove and replace the sender unit

I would check the coil to see if the power side is getting battery voltage with the key in the on position. It could be the key switch.

Slide the door handle forward, just give it a little shove towards the front of the truck it will pop right out. Just replaced my locks so I had to learn that trick.

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

You will have to bleed the whole system, front and back, start with the right rear, get somebody to pump the pedal, put a hose on the lock nut, catch the oil in a can, pump up the pedal, it won't get hard till a few times doing this, crack the bleeder, tighten it back up before the pedal is released, pump again, crack,tighten, pump, repeat, go all the way around the car, keep checking the reservoir, it will pump up soon enough. You might have to go around 2 or 3 times, Now,,,, the part about the pedal going to the floor and getting hard after car is shut off, sound like you didn't hook up the vacuum line to the booster. It has an atmospheric thing going on there. Check the big hose going into the booster, which is that big round thing behind the fluid reservoir. Hope this helps.

ok, you will need a flat head and phillips screwdriver, and a 10 mm socket and ratchet, climb inside and into the back, remove the panel covering the "guts" with the flat head, gently pry with it under that carpeting, it has the push clips. Remove and set aside, use the phillips and remove the next cover, don't lose any screws and set aside. gently pull the plastic windshield, you will be putting it back on, so try not to tear it. you will now see the entire motor assembly. remove the 4 bolts and get the arms to slide off the window by moving the assembly sideways until the arms come free, and remove from the door, disconnect the electrical plugs locking cables and slowly slide the window down manually. Pull the 2 door release cables towards each other and the door will swing open, with no motor assembly and the window down. change your light bulbs and repair or replace any broken parts, I suggest replacing the assembly if this is the case, since you hear the motor whining and nothing is happening

If the driver's window works, and the rest do not, I would start with testing the driver switch. The other windows are powered thru that master switch.

It may be the problem of the 4Runner is a 3.0 V6 with a 5 speed manual transmission, you can test it detail, and you can view more diagnostic tool from http://www.obd2express.co.uk