Ok I have a little bit of a problem. I have a 1993 Mercury Topaz and the
temperature gauge does not move at all while driving.. It is bottomed out.
Once I turn the car off the temperature gauge starts rising all the way
into the red. What could this be? Is it something in the cooling system
such as a thermostat, or is it somewhere else. Someone mentioned the
sending unit but I have no fricken clue what that is.
Today I also just flushed out the radiator and added new anti-freeze/water 50/50 mix. It seems the temperature is not rising as much when I shut the car off. The car only has 76K miles on it but it was an old lady before that owned the car and I don't think anything was ever done with the cooling system. I might even have to flush it out again. :sigh:
Its my first car so I dont know much about cars but I really love working and learning about how to work on them. It took me a half hour to find the radiator plug and another half hour to finally get it open becouse its right above the suspension. :hi:
Here is a pic of the Engine also.
Same engine as mine, 1994 Tempo. I can already tell you the temp gauge on
mine doesnt read right because if you look at my posts SOME damn sensor in
the thing is telling the car it is overheating in gear even though when the
gauge is getting close to hot I can touch the block with gloves and feel
very little heat.
If you go to autozone.com I've found that they have very detailed service manuals for most 80's-90's ford sedans online and its showed me a chitload of sensors and stuff I did not even know were on this fuel injected sumbitch that could be giving me this problem. Its real helpful. If they dont have that topaz try comparing it to the 90's 4 cylinder tempo.
Tempo / Topaz manuals @ Autozone.com (http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823 d/80/12/6a/dd/0900823d80126add.jsp)
Wow... I have to say, that one really has me. :screwy:
Like you said to me in an earlier post Dodge..I think there are some screwy
sensors going on in and about this engine. The problem is figuring out
which effing one.
Like your half assed project by the way :mrgreen: .....I'm jealous like all hell :fu:
Dodge I am very jealus of you right now. LOL Ill be buying an 87 Camaro soon from someone at my job in the spring. I love that engine in your sig. Anyway I am almost certain now that it is the coolant temperature sensor. Reason is becouse it seems to be the guage that is the only thing that is acting screwy. But before I shell in $20 for this sensor should I try the therostat first?
I think a thermostat would be a waste of your money. If you think it's the sensor, go ahead and replace it. This one really has be. Everything is backwards and wrong at the same time. I don't think it would be the sensor but this one is crazy.
Well I am looking at it this way it has to be one of the following:
1. Sensor for the gauge.
2. Sensor for the computer. (Doubt it though, if it is then the car would be running bad)
4. Sending Unit (Where the hell is this? Someone mentioned it to me.)
See my post above about the engine being the same as my tempo. There is a
very detailed online manual for that topaz / tempo at autozone.com. It will
show you where the sensors and sending unit relating to the temp gauge is
at if you search it.
It is either the sensor or the gage itself.