Question about 1993 Toyota Corolla

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My water temperature does not work.because i change my old engine.

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You should get another temperature sensor (the one you need ) year, model of your car and the type of gauge you have then just change it, everything should be fine after hope this will help you!...lipak!

Posted on May 05, 2010

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Start up and die out


Controlled by water temperature, the engine has a "cold start sequence" which does the job of the old time choke. This setting makes the fuel more rich and the idle speed much faster until the engine warms up. Sometimes its the sensor which goes bad and only sends the wrong signal and other times the engine control computer gets the signal and does not make the adjustments.

The cheaper part is the water sensor. Some cars use 2 with 1 working the temperature gauge and the other working the engine controls.

The second possibility depends on whether this engine has a part called a Manifold runner. The manifold has 2 settings and this lets it change from one position for low rpm to the second position for high rpm. It will not run good with the wrong setting.

Mar 01, 2014 | 2001 Ford Mustang

3 Answers

The other day my check engine light came on after my engine started overheating. I did a diagnostic reading on it and the code came up P1258. What does that entail?


code po 1258 is an overheating code, need to check why u r overheating, start simple, do u have fluid, has it been changed , might need thermostat, how old is truck,. is there a leak anywhere.do pressure check on radiator and see if it leaks, check radiator temperature vs engine temperature. get a thermo scanner they work good. point and it reads how hot . if motor is hotter replace thermostat. check make sure oil level is good. get back to me let me know what u find..

Mar 28, 2011 | Chevrolet Silverado 1500 Cars & Trucks

2 Answers

Hi there well done for a great job right my vw sharan 2001 tdi curently is not heating and the water from the engine is not hot when you touch on the pipes they are just warm however the heater gage...


First time you might check the thermostat operating.


Heed of antifreeze coolant temperature!!!


The thermostat location for 2001 VW Sharan 1.9 TDI is on back of the alternator at the bottom side of the bracket.

IMPORTANT NOTE: It is NOT necessary to replace the alternator if you want to change the thermostat !!!

Thermostat checking:
1. Cold engine. Start up the engine and watch of the water temp indicator. After first value 60 Celsius Degree you still warm up the engine until the lifter (pointer) reach 80 C deg. (second mark after 60 C deg.). At this time you let engine running at idle speed and check with your hand the thermostat plastic housing and hose temperature in bottom left side of the engine. Heed of alternator driving belt and ventilator fan !!!
2. If the thermostat is good the hose must be cold until the water temp indicator reach almost 90 C deg.
3. The thermostat opening temperature is 87 C deg.
4. If the hose is already warm the thermostat is out of order.

Thermostat location, Part number: 044121113, in german - "Kuehlregle" (Price around $25):
tdisline_211.jpg


Important note: Always replace the thermostat seal, position 7 in the above picture.


Please do rate my response. Thanks!


Feb 02, 2011 | Volkswagen Touareg Cars & Trucks

2 Answers

Which side ofintake manifold does temperature gauge sending unit go on


Water Temperature Indicator Sender Unit
The water temperature indicator sender unit is installed on the engine into an engine coolant passage. The water temperature indicator sender unit reacts to the engine coolant temperature. Its resistance decreases as the engine coolant temperature increases.

Water Temperature Indicator Sender Unit Removal
swb~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not mix Standard (green) Coolant with Extended Life Coolant (orange). If mixing occurs, drain engine cooling system and refill with originally equipped coolant type. If this contamination occurs the service change interval on Extended Life Coolant will be reduced from 6 years/150,000 miles to 3 years/30,000 miles.
  1. Partially drain engine cooling system as described.
  1. Disconnect engine control sensor wiring (12A581) from water temperature indicator sender unit (10884) .
  1. Remove water temperature indicator sender unit.

Jul 30, 2010 | 1998 Ford Mustang

1 Answer

Van overheating when stuck in traffic fan not coming on changed two sensors engine temperature and temperature controlno change. Fan does work when put power to it externally. Van still overheating when...


u should check for a faulty thermostat first, they are only a few quid and easily replaced. if no change ur most likely faults are a blocked radiator or faulty water pump. u dont sayhow old ur van is but after the thermostat go to the radiator, when its hot check the bottom of the rad to make sure its hot, also brown water means u need to bback flush ur cooling system. even tho u have changed some sensors doesnt mean u got the fan switch sender, dash board sender and fan sender tend to be different sensors, so just double check.

Jul 04, 2010 | 1992 Plymouth Grand Voyager

1 Answer

Best way to change coolant in 2003 sierra


With engine cold, remove radiator cap. At bottom of radiator on left side (as you stand in fronof truck), there is a plastic drain plug that screws into the radiator. This plug does not look like a bottle cap, rather it looks like a large, raised tab. Turn counterclockwise to remove. Have a large pan under the truck at this location, or have the truck parked on the grass. Allow to drain completely. Dispose of the old antifreeze and do let children or pets drink it; it is deadly poison. If you want to do this right, replace the plug, refill the radiator with water only, replace the radiator cap, start engine and let run until opwerating temperature is reached (about 20 minutes), then turn engine off, let cool completely, and repeat the drain procedure. This will more thoroughly remove the old antifreeze from the system. Now refill the radiator with the proper mixture of new antifreeze and water, run engine to proper operating temperature. turn off engine and let cool completely. Add additional water and antifreeze into the coolant overflow bottle if necessary. After changing antifreeze, you may need to add more again after couple of days.

Feb 26, 2010 | 2003 GMC Sierra 1500

1 Answer

Still want to shoot into a thermal runaway.


First of try to understand exactly what part you mention exactly how they work or function
  1. please place a new low speed relay as it try to make out thermal heating cool at it's initial 1st stage level of heating so that the temperature remain maintain if thus it reaches the second level of heating then the high speed relay act at that time & the speed of radiator fan increase to get thermal heating in control.
  2. the thermostat regulate the heating temperature of the engine it senses the temperature & signal to the relay the relay then react according to the temperature level of engine at low heating it operate the low speed relay & high temperature it signal to high speed relay so the engine temperature does not rise to extended level of heating or overheating.
  3. see for thermostat valve is failure if that so replace it new sometime most of the mechanic change it or cancel it so that the temperature does not rise as this thermostat help engine maintain it's ideal temperature which is required by the engine for regular or good working even at extreme climatic condition.
  4. Do check for every tensioner or Ideal Bearing as far consider on the No. of miles or Km the vehicle has run according to us the tensioner or ideal bearing are suppose to be replace at an interval of 30000 to 35000 Km. but this replacement include both Engine timing belt & tensioner & ideal tensioner bearing.
  5. A water pump flow depend on the tension of the drive belt some vehicle come with water pump which drive on inner timing belt tension & some on the fan belt or external tension belt of engine.
for further more FAQ do send in or place your problem we will sort it out till then have a safe drive & happy motoring from siddhanth.....!

Sep 29, 2009 | 2003 Chrysler PT Cruiser

2 Answers

Engine overheating


is the fans working? also check the water pump, by running car and open the radator cap to see if the water is moving.

May 20, 2009 | 2000 Daewoo Nubira

1 Answer

Car overheating


Most cars have a thermostat on the return to the engine block. It is designed to open and close at a certain temperature range. This is what helps to regulate the water temperature circulating through your engine. These thermostat valves get old, corrosion can build on them, or the coil that's responsible for opening it at the designed temperature quits opening all the way or all together.

Things to check for in your particular vehicle type:

1) Coolant Temperature Sensor
2) Radiator (Make sure have the right mixture of water to coolant ratio)
3) Engine fan (cools water in the radiator)
4) Thermostat (opens and closes allowing water to circulate through engine)
5) Of course, the water pump which you said tested fine.

I can be of more assistance if necessary.

Apr 23, 2009 | 2000 Hyundai Accent

1 Answer

98 328IS OVERHEATING AFTER CHANGING THERMOSTAT


Are you putting the thermostat in correctly? It it will not work backwards.

And to confirm that there isn't a different problem, take the thermostat out all together and see if it overheats.

Engine not fully warming up is not usually caused by the thermostat. Stats usually fail closed, not open.

You will want to check the water temperature sending unit or gauge after verify the water temperature with an external calibrated thermometer. You can attach and insulate the external thermometer to the housing where thermostat is located.


Reply back what you figure out. I will be happy to help you further.

Feb 03, 2009 | 1997 BMW 328

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