Question about Cars & Trucks
My car overheats and all the water gets finished. i have to add water everyday.what could be the problem?When it first overheated and the temperature was shooting to maximum;,it finished all the water in the radiator, therefore i added water instantly and unfortunately blew up the head gasket. I removed the thermostat; replaced headgasket, timing belt, coolant, oil filter, oil.I sealed the leaks on the radiator also.the mechanic advised me to also disconnect the cable that goes to the thermo-timer-sensor-switch.From then on every morning it refuses to start the engine;i have to try three or more times and when it finally starts, if i engage gears, it vibrates and switches off on its own. I have to try again two or more times then i can now drive and go, but at first the engine will be running very slowly even if I accelerate more, then it will pick up later. i then went for a diagnostic check to another mechanic, and the test indicated that there was a problem on the thermo-timer sensor switch.I noticed that if i re-connect the cable to the thermo-sensor switch, the car starts properly and instantly and no more vibrating or switching off of the engine on its own.BUT it then starts overheating and water-boiling again wen i travel.Please help.What could be the problem?how do i fix theis problem? is it advisable to run the car without thermostat?im desperate.
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
If the car is overheating it could be due to a thermostat which is stuck in the closed position, a failed water pump or just a slack belt driving it. I think there will be a "little" tube carrying coolant from the engine to the coolant expansion tank, and if you run the engine with the filler cap removed you should see water coming through that pipe IF the rump is running. A failed water pump will not necessarily leak, it just won't pump the water round the engine.
Always take care when dealing with a pressurised cooling system on an overheating engine - the water may well be above boiling point.
If you run the engine without coolant the cylinder head may well warp and repair bill will be huge.
Hope this helps you a bit. D
Posted on Jul 20, 2008
Hi, Sounds like you have tried about everything. Ok the aux. coolant switch is for the electric pump for the heater core will not cause an over heating condition just a longer warm up of the heater core. Has the cooling system been bleed properly if there is a trapped air pocket it will not let coolant circulate. Was the new thermostat installed correctly? They have a vent that needs to be towards the top or they trap air on the back side and cant take an accurate reading to open and close. Other areas to look at would be proper operation of the fan clutch, if they fail they can cause the fan to not lock up properly and supply enough air movement through the radiator. The aux. electric fans and their temp switches do you hear them coming on are they coming on at the right temp.
Posted on Aug 26, 2010
Did you bleed the air out of the system after replacing the thermostat?
For air bleed procedure click the link below:--- http://technoanswers.blogspot.com/2011/07/bleed-air-out-of-system-after-replacing.html ------------
The other cause for over heating can be head gaskets. I agree that you mentioned head gasket checked ok, but still get it rechecked.You might still consider having a mechanic perform a leak test at the radiator cap with a special tool.
Next wuld be to check if the radiator fan is turning on. A fast way to do that is by unplugging the two-wire coolant temperature sensor while the ignition switch is on. That should cause the fan to run. If it does not, there might be a blown fuse for the fan. The best way to diagnose it is by using the DRB3 scanner to command the fan to run. --------- If this checked out ok and still there is overheating problem.Then check if thermostat is opening.-------- If its not opening then yes car will overheat, even you replaced the thermostat, click this link below to troubleshoot thermostat problem even after its replaced:--- http://technoanswers.blogspot.com/2011/07/thermostat-replaced-but-still.html ------------ This should help.Thanks.Helpmech.
Posted on Jul 10, 2011
Tips for a great answer:
Sep 24, 2016 | 2006 Dodge Stratus
Apr 19, 2014 | 1997 Acura CL
coolant pressure tested, its definitely leaking coolant. You will need to get
the coolant running line.
test will help you to know from where exactly coolant/refrigerant is getting
step by step troubleshooting i suggest you to go through the help links
mentioned below :----
link below :-----
Coolant enters in transmission on Toyota Land cruiser?
Camry: Order Coolant Bypass Tube?
Camry: Puff of Blue or White Smoke while Starting?
Camry: Coolant Leak?
2006 Cadillac DTS: COOLANT LEAK AT DRIVER SIDE NEAR
MAF, IAT, MAP and Coolant Level Sensor problem all together
on Mazda MPV?
GMC Engine Coolant Temperature (ECT) Sensor Replacing?
Coolant temperature sensor dies again and again?
2000 Daewoo Lanos: Where to Add Coolant?
Blue Water Warning Light on Dash?
These details will help.
Nov 28, 2012 | 1996 Lexus GS 300
Aug 15, 2017 | 1995 Eagle Talon
For car running hot and overheating issues, I suggest to you go
through this help links. Click this link below and go through the
troubleshooting procedure to take care of the problems: ----Car runs hot? http://howtobyme.blogspot.com/2011/11/car-runs-hot-in-traffic.html
-----------All types of car overheating problems and troubleshooting?
Car freeze overnight and started overheating while driving?http://technoanswers.blogspot.com/2012/01/car-freeze-overnight-and-started.html-----------Engine Overheats and heater blowing cold?
Car overheats and Air blows hot at idle?
----------Car engine Overheats and transmission starts slipping?http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html
----------This details will help.Thanks.
Feb 12, 2012 | 2000 Pontiac Grand Am GT
Jun 15, 2011 | 1997 BMW 328
Feb 15, 2011 | 2000 Chevrolet Impala
Overheating can seriously damage a car's engine if left unchecked. Although overheating simply means that a car's engine temperature exceeds normal operating temperatures, the causes of overheating are varied. What follows is a brief list of some of the most common causes of engine overheating.
Jan 15, 2011 | 1998 Isuzu Rodeo
Jan 02, 2011 | 2002 Land Rover Freelander
Mar 09, 2009 | 1993 Toyota Tercel
66 people viewed this question
Usually answered in minutes!