22r knock - Toyota Nation Forum : Toyota Car and Truck Forums

High country · 02-22-2011, 11:59 PM

Hello, I have a 1986 4 runner with a 22r with a carb when I first start up it sounds great but after a few minutes of running it begins to knock followed by stalling out. I just gave it a tune up and I'm looking for help

Wilscojeff · 02-24-2011, 10:40 AM

Was it knocking before you did the tune-up? What did you do as far as the tune-up?

High country · 02-24-2011, 10:19 PM

Hello, thanks for the reply. As far as a tune up I replaced plugs, wires,cap,rotor,air filter,fuel filter and fixed the leak in the headder with a toyota gasket. I have had the runner for a month or two and its sat, since I've had it I've come to find out that the EFI motor lost a rod and they replaced it with a 22R witha carb. The new motor came out of a truck that was put on its passanger side I've been looking at vacume lines and making sure things are in the right location. The rig runs great for about 3 to 4 minutes and about the time the cold start shuts down it starts to knock then it stalls out. It will fire right back up but still knocks and wants to die, if I keep my foot in it it will stay running but keeps knocking

Wilscojeff · 03-04-2011, 01:36 AM

Sorry for the delay. Does the knocking sound like its coming from the bottom end? Id check the oil pump and oil pick up tube/screen. Im wondering if its not pumping the oil up to the top end. Just a thought.

kvue · 03-05-2011, 02:33 AM

The 2.4 motors are noise maker, but then they are awesome engine. I have a 85 4runner with the 22re, and when i first got the truck it knocked too. I thought it was the rod bear that went out, but my mechanic surprising fix it by adjusting the valves.

He told me that most of the time if the knock is noticeable but not too loud, it's the valves making the noise; and that the noise was transmitting into the block making it sounds like a knocking rod.

High country · 03-05-2011, 10:23 PM

Hello dont worry about the delay were all buisy. I ended up pulling the oil pan and doing an inspection, cleaned the oil pump and wiped up the pan. We ran out the valves and made some adjustments then I drained the fuel tank because it was sitting for a month or two and got some new gas. My next issue is my low fuel light stays on with a full tank

kvue · 03-06-2011, 02:15 AM

Quote:

Originally Posted by High country

. My next issue is my low fuel light stays on with a full tank

It must be a wiring issue, lmk when you find the problem, because my light wont turn on.

Wilscojeff · 03-06-2011, 09:42 AM

Is the fuel gauge working properly? Like kvue said, sounds like a wiring issue. Which are always fun to trace.

High country · 04-05-2011, 10:58 PM

Hello sorry I took so long to respond work's been hell swapping out generators. I got to the bottom of my fuel light issue after I traced all the wiring and checking all my connections then I drained all the fuel out of the tank and ohmed out the sensor to make sure it was still good I disconnected the battery and reset the system and when I got it all back togeather and added gas it was good

High country · 04-05-2011, 11:06 PM

So I figured out the knock and took care of my fuel light but because the wiring harness was swapped from the fuel injection to carb the plug that goes to the rear window motor. I'm trying to figure out if I can by-pass the hole thing and just wire in the rear window motor? I'm not concerned about the wiper just needing to figure out the window so I can stop climbing threw the back they took the harness out of a 86 truck and put it in the runner

Wilscojeff · 04-06-2011, 02:28 AM

so there is no wire from the harness for the rear window motor. If thats the case you may just have to hard wire it in to a toggle switch. Just a thought.