Question about 2004 Ford Focus

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Ford focus 1.8tdci glow plug light only staying on for about 1sec in sub zero temperatures

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When this problem occurred this usually means that one or more of the engine glow plugs is burnt out, the decrease in resistance sensed by the glow plug controller drops and this causes the timer to turn off to quickly, have the glow plugs tested and the glow plug controller replaced if needed.

Posted on Nov 30, 2010

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Posted on Jan 02, 2017

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1 Answer

Vito 2002 glow plug light sometimes stays on?


Maybe sticky relay, the relay times out when the glow plugs reach temperature, if the relay is sticking then light will stay on and so will glow plugs if they have not burnt out

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My focus desiel keeps bringin up a cog light i changed the glow plugs but soon as i put my foot done over 2rpm it comes back on help please


What about the glow plug controller? What about the engine temperature sensor for the glow plug system?

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I have a 2008 Ford Focus 1.6 Diesel. Should the glow plug indicator light come on when starting the car in warm weather


It may, depending oln the temperature of the engine. A cool night could bring engine temp down low enough to require some pre heat, for example.

Aug 01, 2013 | 2002 Ford SVT Focus

1 Answer

1987 Ford f-250 6.9 liter diesel. Glow plugs are good, Relay is new, glow plugs don't work... is there a glow plug relay controller or timer that can be replaced, and what is the part's proper name?


Check for fuses first. The Glowplug timer is the proper name for the part that responds to Temperature when starting your engine. When the engine is cold, of course it is on longer and can cycle making a click and intermittently dimming the lights on your truck. When the engine is warm, your gowplugs may not even fire as the engine is using compression alone to fire up.

Also, Ford did make a Severe Weather model that kept the glowplugs on longer. If you stay in Alaska or a climate with consistent subzero temperatures you may need it.

Nov 16, 2010 | 1987 Ford F 250

1 Answer

Glow plug light


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May 24, 2010 | 2003 Ford Focus

3 Answers

Ford focus 1.8 tdci MY 2003 terrible cold start


only takes one glow plug out of order to cause problems . check them for proper volatge and resistance

Mar 30, 2010 | 2003 Ford Focus

2 Answers

Ford focus 1.8 tdci, is terrible at starting when cold. The motor is slow to pick up speed and doesnt seem to spin fast enough. The glow plugs only stay on for two seconds. However once the engine is hot...


u should check for a coolant leak just above the starting motor, it makes its way into the motor gumming every thing up ,coolant leak is usually from the thermostat housing.

Mar 08, 2010 | 2003 Ford Focus

2 Answers

BAD COLD START NEW GLOW PLUGS STILL BAD START GLOW PLUG LIGHT STAYS ON


You have to check if you really glows comes to power that can show you the light on the dash that are working and maybe the relay of the glows does not work and you will pass voltage. Try a thick cable you put something in the battery positive and the other end touch the tip of the glow should produce a spark pquena holds about 20 or 25 seconds and give him star should work well. Thanks

Feb 27, 2010 | 2003 Renault 181

1 Answer

Transmission cooler light comes on periodically. When car is allowed to sit for a few minutes light goes out and shifts normal


See 3rd dot point. It sounds like transmission fluid is getting hot and triggering the warning light. Check fluid level. Check trans cooler and cooler lines to be sure trans fluid is flowing through cooler to transmission. Transmission fluid temperature (TFT) sensor
The TFT sensor is located on the internal wiring harness to the solenoid valves in the fluid pan.
It is a resistor and measures the transmission fluid temperature.
The transmission fluid temperature is used by the PCM for the following functions:
  • Applying the torque converter clutch is not permitted until the transmission fluid reaches a certain temperature,
  • engagement of 4th gear is prevented in extreme sub-zero temperatures until the normal operating temperature is reached,
  • if the transmission fluid temperature is excessive, a pre-set fixed shift curve is selected and the torque converter lock-up clutch is closed in "2", "3" and "4"; of the transmission warning indicator is activated. No substitute signal is available for the TFT sensor.
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Aug 17, 2009 | 2000 Ford Focus

1 Answer

Glow plug indicator light


Hi, if the egnine start alright. then it will be the LED or just a blub need replacing.

Jul 21, 2009 | 2002 Ford SVT Focus

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