Question about 1997 Lincoln Town Car

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When I start vehicle, the temperature gauge stays on lowest setting even when vehicle gets warm after 15-20 minutes of running. Then the vehicle will die and I have trouble starting it. Finally it will start and the vehicle's temperature gauge will shoot back to normal operating temperature and the vehicle runs fine. This typically happens when I first start if for the day. suggestions?

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Either a bad sending temp sending unit (engine) or the cable fell off it

Posted on Jan 02, 2011

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Posted on Jan 02, 2017

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Changed out water pump and thermostat and vehicle runs high temperature what could be issue?


Reasons the Temperature Gauge Reads High

If the temperature gauge reads high, it could mean your engine is overheating. Another reason your reading might be high is you could be losing coolant. A small leak or evaporation may cause your radiator to slowly lose coolant. A third reason your temperature gauge reads high could be because the thermostat is broken. If this is the case, you may need a coolant temperature switch replacement. The last reason the temperature gauge could read high is because of a water pump, or water pump gasket failure. If the water pump is malfunctioning, it may need to be replaced by a professional.

What to Do If Your Temperature Gauge is High

If your temperature gauge is reading high, it means your car is overheating. This is a very serious matter and you should never drive an overheating car. If your car starts to overheat, shut off the air conditioner and open the windows immediately. If this does not reduce the overheating, turn on the heater as high as it can go. If this still doesn't work, pull over on the side of the road, turn off the engine, open the hood carefully, and wait until the vehicle cools down. Never open the radiator cap while the engine is hot - coolant can spray and burn you. Once the vehicle has cooled, take the car to a mechanic right away so they can diagnose the problem. Cars are especially susceptible to overheating in hot climates, like what's common in cities like Los Angeles, Phoenix, Las Vegas, or Atlanta.
The temperature gauge is an important tool in your vehicle that shows the temperature of your engine's coolant. Contact YourMechanic and have your car inspected for overheating if it reads too high, as this can cause serious problems...

Reasons the Temperature Gauge Reads Cold

On most vehicles, the temperature gauge reads cold until the engine has run for a few minutes. If the temperature gauge still reads cold after the engine has warmed up, the gauge may simply be broken. Another reason the temperature gauge could read cold is if the thermostat in the vehicle stays open. With the thermostat stuck open, the engine can be overcooled, causing a low temperature reading. If this is the case, the thermostat may need to be replaced.

Oct 28, 2017 | Cars & Trucks

1 Answer

Why would gauge cluster not funtion until interior temperature reaches a certain level?


Could be a weak connection in the wiring harness going to the cluster, or inside the key switch.

Feb 16, 2015 | Cars & Trucks

1 Answer

How do i bleed the air to make it start circulating after changing the thermostat


Set the cabin heater control to hot setting. If fitted with climate control, then put the fan on it's lowest setting.
Remove the radiator cap and massage the radiator hoses by squeezing them with your hand (assuming they are cold/warm only)
Locate any bleed screws on any hoses, including the hoses which supply the cabin heater matrix. Slacken these bleed screws if available. Also check the thermostat housing for any metal bleed screw and slacken that too.
Run the vehicle, and keep a check on the radiator fluid level. Top up if necessary. As soon as coolant begins to leak from any bleed screws, shut them off. Run the vehicle up to temperature, until the radiator fan kicks in. Keep an eye on the temperature gauge and shut the vehicle off if the temperature climbs too high at any point.
Once the radiator fan kicks in, then close the radiator cap.


Run the vehicle for ten to twenty minutes once up to temperature.


Turn the vehicle off and allow to cool.


Check the radiator level and top off if required.


Check the expansion tank level and top up to mark.


Done!


After a day or so running, check the radiator level and expansion tank level again. During the first few days of running, pay particular attention to the engine temperature and coolant level.


In some cases the new addition to antifreeze can reduce the water's coefficient of friction/surface tension enough that small leaks can appear in the system. So after running for a few hours, check the entire system for leaks, and perform a pressure test if possible.


Antifreeze to water should usually be mixed at a ratio of 1 to 1 or 50/50


Good luck!

Nov 10, 2012 | 2001 Dodge Ram 1500 Truck 2WD

1 Answer

2004 Impala ls temperature dash gauge


fans came late on those car,like 212 and second fan comes on at 224,you reprogram it to come a lot sooner,,other thing is there might be gunk inside the block,and coolant has hard time to pass through,and staying longer than enough in block temp goes high,even tough the radiator is doing it's job,it is just coming out block lot hotter than it suppose to be,and gauge read the block not the radiator

Apr 18, 2017 | 2004 Chevrolet Impala

1 Answer

2000 malibu runs hot if not warmed up


How do you know it gets hot? Are you going by the temperature gauge on the dash? Or have you checked under the hood and found out the engine really is running hot? ...Reason I ask is, something just doesn't sound right in your description. After just 5 minutes from starting and driving away, the engine would not yet be at normal operating temperature. That would explain the heater not yet warm. But the temp. gauge says hot?
If so, I would replace the temperature sending unit on the engine. the one for the dash gauge, and see if that was the problem-not reading the temp. accurately.
Couple of other things: Are you sure you got all the air out of the coolant system? Start the car with the radiator cap off and let it run until the engine is warmed up fully, then shut it off and install the cap. Does your reservoir tank stay about half full where it should be, between the full-hot and full-cold marks?
If your problem persists. I would have the coolant system pressure tested, and see if you could get a true temperature reading of the coolant when it seems to be running hot.
Good luck.

Mar 05, 2012 | Cars & Trucks

1 Answer

2001 Taurus won't start when warm. Try to start it, it will try to run, roughly, then dies. Then will only turn over for awhile. After it sits for 20 minutes or so, it starts like a new one and keeps...


Sometimes a motor is more sensitive to warm conditions. When the water temperature sensor does not cool off it keeps the engine in a warm run mode which is very lean. This is how lower emissions and better fuel economy are made.

The "cold start sequence" makes a richer fuel mix for starting and running. I have not seen a dividing point where this switches from one mode to the other. IF it is say 180 water temperature degrees and your car stays above 180 degrees turned off after running, then the fuel mix will be very lean until the engine coolant loses heat.

About all you can do is put in a new thermostat of proper temperature or a lower temperature thermostat. You could flush the radiator and back flush the block so that heat loss is more efficient. You could put in a new water temperature sensor. You want to get rid of calcium-fication of the internal surface areas so the components are more like factory new.

Jul 18, 2017 | 2001 Ford Taurus

4 Answers

The temperature gauge on my 2002 grand prix dose


the temperature sending unit on a 97 grand prix 3800 gt(which is also the coolant temperature sensor) is not accurate. the sending unit part of this sensor only sends info to the guage on the dash. the coolant sensor part sends info to the computer of the car. it is located under thermostat and somewhat difficult to get at. i had put a brand new one in and my temperature on my dash is all over the place---even with good thermostat and properly bled system. when i hook up a scanner to my computer, the coolant sensor is sending the computer(ecu??) what seems to be the right temp. anywhere from 194 degrees to 217 when hot. the guage however on dash go from 160 to 260 in less than 2 minutes.

Nov 16, 2009 | 2002 Pontiac Grand Prix

1 Answer

Intermitant temperature


Check to make sure your thermostat works right by monitoring the warming up of your engine. With a completely cold engine, start and run the engine for a few minutes, then put your hand on the top radiator hose to monitor if and when it gets warm as the thermostat opens more and more and note the gauge reading( if it works) the top radiator hose should be unbearably hot within 5-8 minutes. If the therm. opens right it should close right aswell, staying open a little while eventhough the radiator may have cooled may be what you are experiencing causing the rapid cooling and is nothing to worry about. The Hose should not get warm very soon after starting the engine. Regarding you gauge, lets take one step at a time, verify proper op. or the therm.

Jan 20, 2009 | 1986 Toyota 4Runner

1 Answer

99 passport 4x4 tranny question


There is not a dipstick for the automatic transmission on the 1999 Honda Passport. There are two plugs on the bottom of the transmission - the lowest one is the drain plug and the one located higher is the overfill plug. You should have a fluid temperature gauge as it is recommended that the temperature be between 90* F and 135* F when checking fluid level. (I believe you can order from dealer - I have also heard that running the engine for 10-15 min will put you near the proper temperature - to be certain, the temperature gauge is the right way to do it.) Run engine for a few minutes to reach optimum temperature. The vehicle must be on level ground and at idle to properly check fluid level. With proper temperature reached - and engine running at idle - set parking brake - remove the fill plug and add fluid with a syringe or small pump until it just starts to run out of the opening. Do not open the overfill screw with the engine stopped. Replace the fill plug and shift through gears - then remove and repeat one time to achieve proper level.

Jan 17, 2009 | 1999 Honda Passport

2 Answers

Heating System


The Engine Coolant Temperature (ECT) sensor is mounted in the intake manifold and sends engine temperature information to the ECM. The ECM supplies 5 volts to the coolant temperature sensor circuit. The sensor is a thermistor which changes internal resistance as temperature changes. When the sensor is cold (internal resistance high), the ECM monitors a high signal voltage which it interprets as a cold engine. As the sensor warms (internal resistance low), the ECM monitors a low signal voltage which it interprets as warm engine.
0900c1528008f125.jpgFig. 1: View of the Engine Coolant Temperature (ECT) sensor 0900c1528008f126.jpgFig. 2: Engine Coolant Temperature (ECT) sensor locationTESTING
See Figures 3 and 4
  1. Remove the ECT sensor from the vehicle.
  2. Immerse the tip of the sensor in container of water.
  3. Connect a digital ohmmeter to the two terminals of the sensor.
  4. Using a calibrated thermometer, compare the resistance of the sensor to the temperature of the water. Refer to the engine coolant sensor temperature vs. resistance illustration.
  5. Repeat the test at two other temperature points, heating or cooling the water as necessary.
  6. If the sensor does not meet specification, it must be replaced.
0900c1528008f120.jpgFig. 3: Intake Air Temperature (IAT) and Engine Coolant Temperature (ECT) sensor wiring diagram 0900c1528008f095.jpgFig. 4: ECT sensor temperature vs. resistance values

Oct 01, 2008 | 1993 GMC Sierra

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