jlewis74

1989 4runner 22RE 5SP 172K Miles

Did compression test this morning 180-170 on all 4 so thats good. But I know that will not tell me if I have a bad valve. I shot some video of motor and exhaust for you to check out.

One other thing that happened, my check engine light has been on since I got it, thought it was due to O2 sensor not being in place (no cat) but when I was doing the compression test I disconnected the distributor and removed the fuse for the EFI. When I hooked it all back up the check engine light was off but once I got out on the road and took off it came back on.

I am trying to see if this does sound like a burnt valve.

jrock08

Honestly, I can't tell from the video the sound quality on this laptop is awful, but I just pulled the plugs and thats how I found my burnt valve. If you do have a burnt valve you should notice a definite miss and even a power loss on these motors (which should be real noticeable haha) or at least I did with mine.

Jasper 83

It seems to me like it would show up in the compression test which according to the number you gave it didnt.

Sensei

Compression test will show a burnt valve. If it's not sealing it is leaking.... did you get the distributor back in correctly ?

Jasper 83

Jump the test port and get the codes then look it up and see what it says. I'd start there.