I have even permenantly taken the thermastat out. I can't figure out what the problem is. I agree with many of the comments on the excellent power and smooth ride. Exhaust fills cylinder heads and pushes coolant from there as well. A bad map sensor can cause your problem because it changes both ignition timing and fuel mixture, either of which can cause very high temps in combustion chambers especially when under a load.
Well a fried of mine told me to check the intake bolts that they do come lose from time to time so I did and ran the test again and guess what all were blue. I W's just wondering if it works or if it's a bunch of hot air. The manufacturer was not contacted to report the failure. This test needs to be repeated for the remaining cylinders. Oh thanks for the help I appreciate it. Is there more than one coolant temperature sensor one to switch the fans on, and one to talk to the computer? The last repair is the gaskets for the water pump housing. If you can smell exhaust in the surge tank or anti-freeze in the tailpipe, then you have a head gasket problem.
David answered 10 years ago that car prob. I can't say not to buy one, but I also can't say to buy one. Difficulty level goes way up on that one! Cause I was aways taught that blue tint smoke was fuel white smoke was water. Please help I'm stumped , maybe I'm not bleeding it properly , I don't know. I guess you wont want to rate my answer. The thermostat gauges the temperature of the engine to control the flow of coolant into the cylinder block and radiator.
She stated that the vehicle gets very hot and displays a warning that instructs her to shut off the engine. Thank you for giving me info it is helping me learn more. Also cheap to have done. Remove the hose, remove the two bolts and the flange comes off. Are there any retired Cadillac mechanics that might have some insight to this issue? If it's getting hot without first losing coolant, then it's likely a bad radiator. I drove it just a short distance and the temperature gauge went in the hot and a warning came across the dash that the engine was overheating and to stop.
One of the worst engines ever built in my book. . If the battery is older than 4 years based on the battery date code, you should just replace it - especially if you don't know the history. Does anybody know the temperature at which the fans are supposed to come on? The water pump is located on the front of the engine. It has a feed out and one in. Unfortunately I'd agree with other comments that the older ones are the better ones! After thermostat opens and coolant is flowing in radiator, fill the radiator to the neck and watch for bubbles coming up. I appreciate your response thi just really really has me so confused.
In my case mine needed to be replaced causing for my cooling system to not be pressurized and the antifreeze not flow through. There are a couple of Caddy engines though where it is under the alternator and compressor, and the alternator bolt also holds the tensioner for the serpentine belt. If it fails that test you can be sure you have a head gasket problem. The only real accurate test is to use an exhaust gas analyzer over the radiator cap to sniff for hydrocarbons. I haven't gotten to the point where the car has overheated and display board said to idle engine, the temp gauge has just been going up and down when I've been driving.
What ever the problem was has stopped my car runs like brand new and I am loving it again. Water pump 6 months old as well. I would stick to replacing the water pump. The contact expressed extreme concern over a potential fire hazard. I would suspect either the stackable battery terminals on the positive side are dirty, corroded, or loose. Now i have more questions. One way to positvely identify a headgasket failure is to pressurize each cylinder individually with shop air using a spark plug air adapter.
We don't see that here, so it's safe to assume for now that the U1255 isn't indicating a real problem here. I know its probly a temperary fix but its a fix and now we know what the problem was. I will check the bypass hose after work. After 10 minutes of allowing your engine to idle, touch the upper radiator hose. Then we put the correct radiator cap on it along with the correct thermostat along with the dex cool antifreeze. The vehicle was taken to the dealer they did the recall and gave them a copy of what mechanic had given the consumer.