Ok, someone will hopefully be able to help me with this engine problem. I am pretty mechanically inclined and my roommate is VERY mechanically inclined when it comes to engines. Here's my predicament, I'll describe as best I can...
About two weeks ago, I sunk the Jeep in a river/creek, nothing on the top end got wet except the battery, it just sucked water into the intake, but didn't hydrolock. The water was above the tranny and starter but the starter was the only engine part underwater, also water up to the back window on the hatch (~8" lift and 37's just to get an idea of how deep it was) Anyway, we winched it back to shore, pulled the plugs, cranked it, siphoned the remaining water out of the intake, pulled the air filter, after we put everything together, after a little good lovin, it cranked right up, obviously it ran like crap but it ran. So the next day, replaced air filter, oil filter, drained both diffs, and refilled them. Next weekend, drove it 2 and a half hours on the hwy (no fun w/o a working radio) up to Skyjacker Rocks Tennessee (our club was leading trails for the event). Ran fine the whole way. Wheeled it Friday and Saturday, ran fine. Coming off the trail on Saturday, the engine starts to stumble like its running out of gas. Eventually it dies completely, it cranks and will idle for a short time but idles REALLY rough like it has a cam in it. Have to get pulled back to camp. Work on it all night, replace the spark plugs, TPS, and CPS, still doesn't fix it. Checked the injectors by unplugging each one while revving a little bit. All of them worked, pulled fuel filter, emptied it out, looked good. The fuel pump still works I assume because I hear it turn on. Now the weird part, the MAP sensor was unplugged so that was why it was idling rough I thought. I plugged it back in, idled fine for a while, but when I drove it would run up to about 1200 rpm and act like it wasn't getting any gas. Now it idles rough like before and when I hit the gas it skips and then revs, but when I rev it slow it will go all the way to redline just fine, but when I floor it, it seems like its not getting enough gas. I pulled the gas tank and emptied and cleaned it and am going to put it back in when I get back to my house on Sunday. Neither me nor any of my Jeepin' friends can figure this out. The best I can figure is that its fuel related or vaccum or some sensor I don't know about. Someone please help me!! I just finised the front leaf/D44 swap and I wanna wheel it but I can't cause of the engine!! GRRRRRRRRR....any help much appreciated! Thanks!!
About two weeks ago, I sunk the Jeep in a river/creek, nothing on the top end got wet except the battery, it just sucked water into the intake, but didn't hydrolock. The water was above the tranny and starter but the starter was the only engine part underwater, also water up to the back window on the hatch (~8" lift and 37's just to get an idea of how deep it was) Anyway, we winched it back to shore, pulled the plugs, cranked it, siphoned the remaining water out of the intake, pulled the air filter, after we put everything together, after a little good lovin, it cranked right up, obviously it ran like crap but it ran. So the next day, replaced air filter, oil filter, drained both diffs, and refilled them. Next weekend, drove it 2 and a half hours on the hwy (no fun w/o a working radio) up to Skyjacker Rocks Tennessee (our club was leading trails for the event). Ran fine the whole way. Wheeled it Friday and Saturday, ran fine. Coming off the trail on Saturday, the engine starts to stumble like its running out of gas. Eventually it dies completely, it cranks and will idle for a short time but idles REALLY rough like it has a cam in it. Have to get pulled back to camp. Work on it all night, replace the spark plugs, TPS, and CPS, still doesn't fix it. Checked the injectors by unplugging each one while revving a little bit. All of them worked, pulled fuel filter, emptied it out, looked good. The fuel pump still works I assume because I hear it turn on. Now the weird part, the MAP sensor was unplugged so that was why it was idling rough I thought. I plugged it back in, idled fine for a while, but when I drove it would run up to about 1200 rpm and act like it wasn't getting any gas. Now it idles rough like before and when I hit the gas it skips and then revs, but when I rev it slow it will go all the way to redline just fine, but when I floor it, it seems like its not getting enough gas. I pulled the gas tank and emptied and cleaned it and am going to put it back in when I get back to my house on Sunday. Neither me nor any of my Jeepin' friends can figure this out. The best I can figure is that its fuel related or vaccum or some sensor I don't know about. Someone please help me!! I just finised the front leaf/D44 swap and I wanna wheel it but I can't cause of the engine!! GRRRRRRRRR....any help much appreciated! Thanks!!