Blase
Spotter Required
Long shot but I thought I'd post here and ask!
I bought a 4runner buggy from a friend of mine. It had been sitting for 2-4 years. Ran GREAT before he let it sit. Was sitting outside with the hood up. Intake was clean nothing got in. I don't see anything in the Exhaust. Nothing that I've seen was open to the elements on the motor. ECM is in the factory spot so it could have seen water. There a security module that was sitting in a puddle of water under the drivers seat.
I put a new battery, dumped all the gas and tried to fire it up. No fuel pump even when I put 12V straight to it so I installed a new fuel pump. Once I did that the fuel pump would come on when cracking but it still wouldn't run. Checked fuel at the rail great clean fuel. Next I pulled a couple of spark plugs and check spark. Spark was great! I know its got air so I thought maybe the injectors are clogged from sitting. To check I got a set of Noid lights to see if the ECM was telling the injectors to fire (suspecting ECM or electrical issues). They are firing so I went ahead and replaced all the injectors.
Still won't start. Doesn't even pop or sound like its trying to run.
Had a buddy come over and tell me I needed to do a compression and leak down test. All 6 cylinders have ZERO compression. Nada Nothing! So we pulled the passenger valve cover to see if the valves where stuck and to look at their position for the leak down test. With all the valves closed we did a leak down on each cylinder on the passenger side. All had leak down past the piston. Also I haven't pulled the front timing belt cover but I did loosen it and pull it back to see if the belts had maybe rotted away. They are there, turning and appear to be in good shape.
Do I have stuck rings from sitting in every hole enough that it won't build enough compression and as such won't run?
is there anything electrical that could cause no compression?
Wiring on this buggy is a mess! Rats chewed some of the wires while it was sitting. For the most part it appears that the engine and body harness wires are fine. Only a very few as of now unused non essential body harness wires are chewed (lights and such). I have a cheapo Auto Zone scanner and it says its reading a code P1600. It will clear the code but it just comes back which tells me its talking to the ECM. I was sure my issue was electrical until we did he compression and leak down test. Now since I have spark and I know the ECM is telling the injectors to fire (plugs are wet wet and you can see fuel on top the pistons when trying to start) I'm not so sure my issue is electrical.
Any thoughts or help is much appreciated!! I'm a garage mechanic. I throw parts at it to try and fix the issue and that's getting $$$. Can this motor be saved?
I bought a 4runner buggy from a friend of mine. It had been sitting for 2-4 years. Ran GREAT before he let it sit. Was sitting outside with the hood up. Intake was clean nothing got in. I don't see anything in the Exhaust. Nothing that I've seen was open to the elements on the motor. ECM is in the factory spot so it could have seen water. There a security module that was sitting in a puddle of water under the drivers seat.
I put a new battery, dumped all the gas and tried to fire it up. No fuel pump even when I put 12V straight to it so I installed a new fuel pump. Once I did that the fuel pump would come on when cracking but it still wouldn't run. Checked fuel at the rail great clean fuel. Next I pulled a couple of spark plugs and check spark. Spark was great! I know its got air so I thought maybe the injectors are clogged from sitting. To check I got a set of Noid lights to see if the ECM was telling the injectors to fire (suspecting ECM or electrical issues). They are firing so I went ahead and replaced all the injectors.
Still won't start. Doesn't even pop or sound like its trying to run.
Had a buddy come over and tell me I needed to do a compression and leak down test. All 6 cylinders have ZERO compression. Nada Nothing! So we pulled the passenger valve cover to see if the valves where stuck and to look at their position for the leak down test. With all the valves closed we did a leak down on each cylinder on the passenger side. All had leak down past the piston. Also I haven't pulled the front timing belt cover but I did loosen it and pull it back to see if the belts had maybe rotted away. They are there, turning and appear to be in good shape.
Do I have stuck rings from sitting in every hole enough that it won't build enough compression and as such won't run?
is there anything electrical that could cause no compression?
Wiring on this buggy is a mess! Rats chewed some of the wires while it was sitting. For the most part it appears that the engine and body harness wires are fine. Only a very few as of now unused non essential body harness wires are chewed (lights and such). I have a cheapo Auto Zone scanner and it says its reading a code P1600. It will clear the code but it just comes back which tells me its talking to the ECM. I was sure my issue was electrical until we did he compression and leak down test. Now since I have spark and I know the ECM is telling the injectors to fire (plugs are wet wet and you can see fuel on top the pistons when trying to start) I'm not so sure my issue is electrical.
Any thoughts or help is much appreciated!! I'm a garage mechanic. I throw parts at it to try and fix the issue and that's getting $$$. Can this motor be saved?
. I tried 4 different impacts(battery and air), the "strap trick" (wrapped around the crank pull to the frame) and Tried making a tool (flat bar and two bolts) like the interweb suggested. None of those worked.