HELP! Replaced Radiator and Thermo, now engine smoking!
Hey all. Just replaced my leaking radiator and hoses. I also found that the prior owner had taken out the thermostat. I put in a new thermostat (190 degree) and gasket. Flushed the system with distilled water. Refilled with new coolant/water.
I started it and was letting it run to circulate the coolant/water. After about 5 minutes it started squealing. Couldn't tell where the sound was coming from, but it didn't sound like the fan/steering belts. I shut it off and it was smoking.
Side note, it leaks oil- not a lot but some. I (dumbly) just added half a quart of oil without first checking the dipstick. After the squealing and me shutting off the engine, I opened the oil fill knob and smoke came out (some, not a ton).
1. What could the squealing be?
2. Could the smoke be from over filling with oil?
I don't want to run it right now. The temp gauge on the inside doesn't work, so I have no way to know if the engine was overheating.
No smoke from the tailpipe. Smoke is coming from this random hole from the manifold (I just got this jeep last week, so I'm a newbie). I'm assuming that hole is supposed to have a hose going somewhere. See the center of this photo. It definitely smells like something may be burning, though it could be the old rusty coolant that spilled on top of the manifold burning off. It's on the driver side (see power steering on right for reference point).
Update- started it again and let it run for 10 minute. No squealing, but still a little smoke and burning smell from that same spot.
That random hole should have a hose on it running to the air cleaner. Can't see if you have an OEM air cleaner, but in any case that just takes hot air from around your exhaust manifold to feed the air intake on cold start ups. It's not actually coming from anywhere but around the exhaust. Smoke coming out of it could be a hole in your exhaust manifold, or something spilled around there - like coolant.
Yeah antifreeze on belts makes one hell of a noise. I looked at a 98 Cherokee that had antizreeze dripping on the belt and it's was pretty loud. The guy said it needed a new belt, so he put wd40 on it to quiet it lol, I laughed when he did that
1981 jeep cj-7 258 with t-176 4 speed and 31x10.5x15 tires,
1979 jeep cj-5 gone but not forgotten
The good news is that it made the 25 mile trek home today from my friend's house. No smoking, no squealing. Yes- temp gauge is on my short list. Though oddly enough, for about 20 seconds while pulling out of the driveway, the needle registered then it went back down to C. Not sure why. I have owned it for 2 weeks and hadn't seen any activity on that needle so far.
Added bonus- adding the thermostat made the heater start working. Was nice to have on a 40 degree day!
You may just need a new temperature sensor. Mine wouldn't register when I bought it, picked up a new temp sensor and all is well. Alternatively, the temp gauge is burned out. To test - ground the temp sensor on the frame, temporarily, and watch if the needle pegs out. Do it for too long and you're sure to burn it out, so sit in the cab while a helper grounds.