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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

Posted by Kc mayo on

  • Kc mayo Dec 01, 2017

    It stays off though if i dont put my foot down if i do fast it struggles to go

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Marvin

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  • Cars & Trucks Master
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What about the glow plug controller? What about the engine temperature sensor for the glow plug system?

Posted on Dec 01, 2017

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fyrebyrd1

Evan Jenson

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SOURCE: how do i change glow plugs

If you are sure the glow plug relay and timer, which looks like a starter relay sitting on the intake manifold, are good. The glow plugs are located under the rocker arm covers between each injector. I would recommend purchasing new rocker cover gaskets, which incorporate the wiring harnesses for both glow plugs and injectors. They can be reused, but they will generally start to leak oil before long. The injectors are pretty easy to identify, they're the big square things with the electrical plug. the glow plugs have a single wire running to them. if I can recall they require a 10mm hex. hope this helps.

Posted on Oct 22, 2008

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Anonymous

  • 1 Answer

SOURCE: expert van 2.0 hdi engine runs lovely until you

Hi You need to get the ecu checked for fault codes if there are none it is possibly low fuel pressure you should allso check this have you changed the fuel filter or opened any fuel lines this could introduce air
which will lower fuel pressure.Good luck Chris.

Posted on Mar 24, 2009

Anonymous

  • 43 Answers

SOURCE: orange warning light on dash of 2003 Ford Focus.Its a cog symbol

This light is for multi funtion automatic transmisson cooling system

Posted on Apr 12, 2009

Anonymous

  • 1 Answer

SOURCE: my golf gt tdi glow plug light keeps flashing

check to see if your brake lights are working.usually the stop light switch fails and is the cause.but before buying a new one check the stop light fuse.its a common problem with a simple fix.hope this helps.

Posted on May 19, 2009

paul

  • 263 Answers

SOURCE: Brake lights come on when i put foot on clutch Jaguar 2003 xtype

check irf you need brake fluid first then brake pads

Posted on Dec 16, 2009

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Ford focus fault code p2263


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A Deisel jetta need to replace glow plug rely ,,where is it..?? And its very very hard to start ..is this going to do it and how do you know if the deisel is worth keeping it has like 300,000 _ thanks...


not always the golw plugs can be bad and the engine can be low on compression. does it start alot better if you add a gallon of kerosene to 5 gals of desiel? Or a quaart of gas? the glow plugs can be checked with a test light the connectrs are in plain veiw and the wires going to them are big. Follow the wires back to the relay they go straight there, the relay is real close to the battery as it draws alot of power follow the big wire on the battery that doesn't go to the starter and thats the glow plug relay. they last good but the connections get dirty, reconnect all the connectors on itand see with the key on if the glow plug light comes on on the dash that wire that lights the light is the same wire that lights the light fires the glow plugs. You can take the wire off the glow plug( you need to do it anyway it's a yearly service anyway and with a test light connected to power touch the disconnected glow plug with the lights probe and the light should light, not all of them are likly to be bad but if you find two or more just change them all as the ones that aren't out are likly to fail anytime and if you want to drive though the winter you need all the help you can gt. the battery cables and the one going to the glow plug relay are likly to fail at the battery so go over this good It might start fine with just two glow plugs working I'd pick the two center cyclinders or the two outboard ones as once the engine starts it'll keep running long enough to start the other ones. low voltage as your cranking can effect the glow plugs but the relay is suposed to turn the glow plugs off at cranking and time out after they've been on long enough. dirty connections are almost always the problem so clean everthing before you replace anything. Needs cleaned before yu put on new parts anyway and the glow plugs need to be taken out with the right tool or you may end up with a broken off glow plug in your cyclinder head.

Oct 01, 2010 | 1991 Volkswagen Jetta

1 Answer

My ford focus desiel engine makes a shaking sound when i start up but once its going seems ok


Time to check the pre heat glow plugs . When it's starting from cold the glow plugs heat the cylinders prior to injuction and if one plug is down you will get this type of symptom. A amp draw test on the plugs will determine the problem . But a set of glow plugs will serve you well . Good luck

Apr 15, 2010 | 2003 Ford Focus

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Diesel engine cuts out and glow plug comes on please help


does the glow plug/coil light flash at all???? once would indicate glow plug relay fault! three times would indicate FUEL pump failure! sorry never experienced two flashes....

Kind regards

Oct 20, 2009 | 2002 Ford SVT Focus

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Hi Shaunbarry, Have you been able to fix the problem changing the EGR valve?

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You probably need to replace the glow plug harness. The contacts in the boots that connect to the glow plugs get corroded and throw off the resistance of the circuit. The controller in the VW measures whether your glow plugs are good or not by testing the resistance in the circuit. Test all the glow plugs like DickyIV1 stated and if they are all good try cleaning out the crud on the contacts in the glow plug harness. You will then either need to clear the error code or wait several trips for it to clear itself. If it never clears itself or if it comes back on after you clear it then the glow plug harness is too much of a mess. This is really common on the TDIs (mine needs to be changed but i have been putting it off and ignoring the mil light). When I first tried cleaning the harness on my car it didn't give me a problem for another year and a half. But I knew I'd eventually be changing it.
The other thing to keep in mind is that you should change out glow plugs as a set. It causes less problems in the long run since if one failed you will probably find other will soon fail and it keeps all the resistance close to the same value.

Jul 16, 2008 | 2002 Volkswagen Jetta TDI

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