Question about 2007 Chrysler PT Cruiser Touring Hatchback

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Temperature pointer move up and down - 2007 Chrysler PT Cruiser Touring Hatchback

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Found this to be common. Has a two speed fan. Fan also goes on and off at different speeds. Operates differently with ac on are off. Should not go past the half way mark while idling on hot days and should always drop to normal position while driving. Fluctuation should not be very much Air in system, bleeder on side of fill, not on overflow. Check fan high and low speed.

Posted on Jan 15, 2014

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Posted on Jan 02, 2017

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I have a 2003 Ford Expedition. It is showing overheating and then will shoot right back down. We've replace the thermostat but that doesn't seem to be the problem. doesnt appear to be overheating.


Bad gauge , maybe !

Temperature Gauge
The PCM receives the engine coolant temperature status through hardwired circuitry to the engine coolant temperature (ECT) sensor. The instrument cluster receives the engine coolant temperature data from the PCM through the SCP communication network. The instrument cluster microprocessor monitors the engine coolant temperature data received from the PCM and commands the temperature gauge indication with a corresponding movement of the pointer.

At the dealer we would hook up factory scan tool an see what the PCM is seeing for coolant temp . then go into data stream of instrument cluster an see if it is receiving the same data . , Your best bet , take it to a ford dealer . Before you start replacing parts that don't fix the problem .

Mar 26, 2017 | Ford Cars & Trucks

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Temp guage not working 1999 alero


One advantage us dealer tech's have over a week end warrior is that we have factory service repair information and have factory scan tool ,Tech 2 , to check data coming into the instrument cluster . Most of you probably don't even think about how that coolant temp infor shows up on the gauge , except by a coolant sensor !

High Temperature Indicator
The high temperature Indicator function handles the control of the Engine Temperature Gauge Display and the red High Temperature indicator. The Powertrain Control Module (PCM) reads the Coolant Temperature Sensor, filters the messages, and sends the coolant temperature to the instrument cluster via a Class 2 serial data message. The PCM monitors the coolant sensor in order to determine a fault. The PCM transmits the Class 2 serial data coolant temperature report messages to the instrument cluster for the temperature gauge display and for the high temperature indicator control.
The instrument cluster receives the engine temperature data in the Class 2 serial data message from the PCM. The instrument cluster converts this data into a temperature gauge pointer position which drives the gauge pointer. The instrument cluster also uses this data in order to determine the high temperature indicator control.
The Body Control Module (BCM) looks for the high temperature indicator Class 2 serial data report from the instrument cluster and triggers a chime when the indicator is ON.

Your best bet , take it to a qualified repair shop , rather then just replacing parts .

Feb 10, 2017 | 1999 Oldsmobile Alero

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1997 pontiac grand prix 3800, when i plug in the temp sensor the fuel and temp guage max's out? why


Could be a shorted sensor , have you replaced it ? Shorted wiring , A problem with in the instrument cluster . Would need to do some testing to find out what causes this . I would tell you to check power an ground of both circuits involved ,could you do that ? You would need pin out charts of the connectors that go to the instrument cluster . find the wire for coolant sensor , then find that same wire color at the coolant sensor an with ohm meter check to see if wires are shorted to ground etc...

The engine coolant temperature is operated by two coils. The battery voltage is applied to both of the coils. One of the coils is grounded directly and the other coil is grounded through the engine coolant temperature sender. The engine coolant temperature sender has a resistance of 44 ohms at 125?° C (260?° F). The resistance increases at lower temperatures. The resistance is approximately 1365 ohms at 37?° C (100?° F), causing the current through the engine coolant temperature sender at one of the coils to increase, as the coolant temperature decreases and moves the pointer.
Fuel Gauge
The magnetic fields of the two coils moves the fuel gauge pointer. The two coils are at right angles to each other. The battery voltage is applied to the E coil and the circuit divides at the opposite end of the E coil. One voltage path continues to ground through the F coil, as the other goes to ground through the variable resistor of the fuel level sender.
The resistance of the fuel level sender is low when the fuel tank is low. A large flow of current passes through the E coil and the fuel level sender resistor. The current pulls the pointer towards the E on the scale.
The fuel level resistance is high when the fuel tank is full. The increased current flowing though the F coil moves the pointer to the F on the scale. With the two coils operating the pointer, the fuel gauge is not affected by the any changes in the voltage of the system.
Without being able to test the electrical circuits , I would say there is a problem inside the instrument cluster. You could take it out an have it tested or you could get a used one from a auto salvage yard for $15.00 an see if the problem goes away .

With

Mar 19, 2015 | 1997 Pontiac Grand Prix

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Where is the air and heat blend motor on a 2000 dodge dakota?


Hi Sharon, I'm glad to help. Your 2000 year doesn't have a motor for the temp door. It operated by a cable running from the control head to the temp door and you work it manually. If you can't control the temperature from hot to cold, sometimes the cable come off or breaks. Here how you can see the cable to see if its working. Remove the radio and right behind it you will see the cable attached to the door, while watching it move the temp lever from hot to cold and watch it. If it is moving then its most likely out of ajustment. If it is not moving, then you'll need a new cable. Just in case it is moving, I'm attaching the instruction on how to adjust it below. Hope this helps and have an awesome day Sharon!



TEMPERATURE CONTROL CABLE

Any time the heater-A/C control or the temperature control cable are removed and/or replaced, the following procedure must be performed.
  1. The temperature control cable housing and core must be installed at both the heater-A/C control and the heater-A/C housing ends, and the heater-A/C control must be installed in the instrument panel. See Heater-A/C Control and Temperature Control Cable in the Removal and Installation section of this group for the procedures.
  2. Rotate the temperature control knob on the heater-A/C control so that the knob pointer is in the 12 o'clock position.
  3. Pull the temperature control knob straight out from the heater-A/C control base until the perimeter of the knob (not the knob pointer) protrudes about 6 millimeters (0.25 inch) from the face of the control base.
  4. Rotate the temperature control knob to the 1 o'clock position. Push in on the knob slightly and continue rotating the knob to its full clockwise stop. The knob pointer should be aimed at a position about 8 millimeters (0.315 inch) beyond the end of the graduated red strobe temperature control graphic on the face of the heater-A/C control base. If the knob is not pointed to the correct position, go back to Step 2 and repeat the adjustment procedure.
  5. Rotate the temperature control knob counterclockwise until the knob pointer is in the 12 o'clock position again.
  6. Push the temperature control knob straight in towards the heater-A/C control base until the perimeter of the knob (not the knob pointer) is flush with the face of the heater-A/C control base.
  7. Rotate the knob to its full clockwise stop again. The knob pointer should be aimed at the end of the graduated red strobe temperature control graphic on the face of the heater-A/C control base. If OK, go to Step 8. If not OK, go back to Step 2.
  8. Rotate the knob to its full counterclockwise stop and release the knob. If the knob springs back from the counterclockwise stop, the self-adjuster clip that secures the temperature control cable to the blend-air door lever is improperly installed. See Temperature Control Cable in the Removal and Installation section of this group for the procedures. If the knob does not spring back, the temperature control cable adjustment is complete.

May 14, 2014 | Dodge Dakota Cars & Trucks

1 Answer

Transmission out of sync


I see no one has tried to help. I am interpreting your problem as the Shift indicator shows the wrong gear. The pointer usually has a slotted opening with a screw locking the pointer to keep the pointer locked in the proper position. In this scenario, the pointer just needs to be physically reset. You will need to remove any panels covering this pointer.
Scenario 2 , Trans was locked in Park. Someone tried to force gearshift to move when Brake pedal was not stepped on and they stretched the shift components. May have stripped old parts beyond adjustment.
Scenario 3, Does not shift gears correctly while underway. Can be due to shift solenoids in transmission or connector to same solenoids. In this case clean connector to trans or replace solenoids.
Hope your problem is simply a pointer.

What also can happen is the

Jul 18, 2013 | Ford Explorer Sport Cars & Trucks

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The temperature gauge does not seem to reach full operating temperature. The thermostat has been replaced but the temperature gauge drops if I am on the level or going downhill. The appointed agent says...


it will drop when going down hill and no load on engine ,this is normal ,think the shunt resistor in the gauge could be playing up where by its allowing the gauge to fluctuate a bit too quick, but the old adage applies here if it works leave well alone .Whats the outside temperature ?? this will have a big effect as well ,even more so if its below zero outside ,these cars a massive rad in them .Best advice is polish it and treat leather seats with cream and a nice vac out and it will run perfectly and never go wrong ,just like my sovereign

Jan 02, 2010 | 2008 Jaguar X Type

1 Answer

What is the meaning of red light in the temperature panel?


this does not pose a problem though but Let someone have alook at you radiator. Might be the temperature sensor is worn out.

Please rate.

Mar 11, 2009 | 2000 Toyota Camry

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