Hello all,
A little about my 4runner and myself.
1995 3vze 4wd, 233,xxx miles
I stupidly bought the thing, without reading about the 3vze enough first, for $2200. The stupid Peruvian guy I bought it from assured me "Iss a good truck mang" and when I called him about the interstate issue, "Well I sold it as is. I already gave somebody I owe money to, the money". The truck is very clean, but we didn't take it out on the interstate on the test drive. It was late, my g/f and I had driven 3 hours to look at it, the interstate was 20 minutes from his house. We just shoved the money at him. This is my first Toyota, and really, my first truck that's been in my name. We got it out on the interstate on the way home and it wouldn't do over 55mph. Let the broke, now broker, college student tears begin. After doing some looking around, I found I had low compression on #5 and #6 (GREAT:flipoff
. So I rip this absolutely retarded engine apart (I normally work on older BMWs, VWs, and newer Fords when I was a tech. at Ford through Jr. College.), take the heads in to be machined, checked out. Burned exhaust valves! Nice! Get those replaced, bolt everything back up, engine is running fantastic. Nice and in time, all the vacuum lines are in place, urrbody happy. Hell, the 4wd, AC, and power steering even works great. :yo:
Alas, my dilemma. The thing does not want to go over 70mph. It runs good (a tad sluggish compared to the fabulous 4.6L's I'm used to) up until then, but it does not want to go over 70. It's almost like it runs out of guts, that's the best way I can put it. You really have to be in the pedal to get it there and then it will not go over that. It isn't overheating and it isn't surging or misfiring or anything when it gets there, it just won't get over 70mph. No codes, might I add.
Things I have just finished doing:
-Headgaskets, all other relevant gaskets in kit (OEM Toyota, w/ slipperplate). Compression on all cylinders is at ~160psi
-o2 sensor (denso)
-timing belt
-water pump
-Bi metal switching valve (w/e it's called) fix with 5/32" aluminum tubing.
-Rebuilt injectors (I did it myself, confirmed to have been done right)
-New wires, cap, rotor, plugs, set timing at 12*
-Checked AFM, o2 signal
-replaced fuel filter, fuel pressure is at 40psi (which I found a really neat little fitting to check fuel pressure without needing all of that stupid banjo adapter stuff).
-Vacuum at idle is around 15-16" (a little low, right?)
I'm leaning more towards a clogged cat. I haven't actually taken it off to look at it. I can only work on it during the weekends at my parents because I'm in engineering school and I especially can't work on it the next few weeks due to finals:sobbing:. I was hoping in the meantime you wizards could enlighten me on whether you agree, what you could suggest for a repair (gut cat, test pipe? I live in AL, no emissions.), and if you've experienced this before. I've seen a cat do this before, but I also had a very nice diagnostic tablet at Ford when I was troubleshooting.
Thanks!
A little about my 4runner and myself.
1995 3vze 4wd, 233,xxx miles
I stupidly bought the thing, without reading about the 3vze enough first, for $2200. The stupid Peruvian guy I bought it from assured me "Iss a good truck mang" and when I called him about the interstate issue, "Well I sold it as is. I already gave somebody I owe money to, the money". The truck is very clean, but we didn't take it out on the interstate on the test drive. It was late, my g/f and I had driven 3 hours to look at it, the interstate was 20 minutes from his house. We just shoved the money at him. This is my first Toyota, and really, my first truck that's been in my name. We got it out on the interstate on the way home and it wouldn't do over 55mph. Let the broke, now broker, college student tears begin. After doing some looking around, I found I had low compression on #5 and #6 (GREAT:flipoff
. So I rip this absolutely retarded engine apart (I normally work on older BMWs, VWs, and newer Fords when I was a tech. at Ford through Jr. College.), take the heads in to be machined, checked out. Burned exhaust valves! Nice! Get those replaced, bolt everything back up, engine is running fantastic. Nice and in time, all the vacuum lines are in place, urrbody happy. Hell, the 4wd, AC, and power steering even works great. :yo:Alas, my dilemma. The thing does not want to go over 70mph. It runs good (a tad sluggish compared to the fabulous 4.6L's I'm used to) up until then, but it does not want to go over 70. It's almost like it runs out of guts, that's the best way I can put it. You really have to be in the pedal to get it there and then it will not go over that. It isn't overheating and it isn't surging or misfiring or anything when it gets there, it just won't get over 70mph. No codes, might I add.
Things I have just finished doing:
-Headgaskets, all other relevant gaskets in kit (OEM Toyota, w/ slipperplate). Compression on all cylinders is at ~160psi
-o2 sensor (denso)
-timing belt
-water pump
-Bi metal switching valve (w/e it's called) fix with 5/32" aluminum tubing.
-Rebuilt injectors (I did it myself, confirmed to have been done right)
-New wires, cap, rotor, plugs, set timing at 12*
-Checked AFM, o2 signal
-replaced fuel filter, fuel pressure is at 40psi (which I found a really neat little fitting to check fuel pressure without needing all of that stupid banjo adapter stuff).
-Vacuum at idle is around 15-16" (a little low, right?)
I'm leaning more towards a clogged cat. I haven't actually taken it off to look at it. I can only work on it during the weekends at my parents because I'm in engineering school and I especially can't work on it the next few weeks due to finals:sobbing:. I was hoping in the meantime you wizards could enlighten me on whether you agree, what you could suggest for a repair (gut cat, test pipe? I live in AL, no emissions.), and if you've experienced this before. I've seen a cat do this before, but I also had a very nice diagnostic tablet at Ford when I was troubleshooting.
Thanks!
