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Diesel glow plug relay

I'm having major problems starting my van right now. Once running, it runs like a dream, but starting is proving to be next to impossible. Changed all the plugs the other day, and she started fine the first time (did pour a little bit of petrol directly into the carby) and started ok for the rest of the day. It's morning problems, when cold and damp. Once started, it does sound like the choke is on, it's revving at a higher than Idle until warm. The engine is turning over, just not getting going.

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  • Cars & Trucks Master
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What brand is it? Does the starter spin the engine strong or dragging? At least 8 RPM cranking speed is required to start a diesel. Even with preheat, starter speed is critical.

Posted on May 17, 2017

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  • Cars & Trucks Master
  • 42,176 Answers

The heading is diesel glow plug relay and then you go on about a choke and petrol inplug holes
what have you got a diesel engine or a petrol engine

Posted on May 17, 2017

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Posted on Jan 02, 2017

txkjun
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SOURCE: 2000 silverado 4.8 v8 runs bad when it is cold out side.

Try replacing the coolant temperature sensor for the injection system.

Posted on Jan 11, 2009

  • 81 Answers

SOURCE: stalls and wont idle when cold

Re the trooper. You have a couple of possibles. The most likely is the glowplugs or glowplug relay. Don't be fooled into thinking glow plugs only heat to start - the also do whats called postheat. That is to raise the cylinder temp until the block is warm. IF they are not functioning (clip a light onto one whilst switching the glowplug on to test the relay) this is common.
Most likely is a stuck EGR valve - stuck open so running a very lean mix when cold. Its two bolts on the inlet manifold, pulls out and looks covered in soot - it should push in and spring out. Can be cleaned in petrol or alcohol or with compressed air.
More remote is possible you have a faulty injector...only really testable by an engine centre...

Posted on Jan 26, 2009

  • 1 Answer

SOURCE: isuzu 2001 diesel engine won't start

cant start deisel 3.0 lilter sounds like there is no fuel getting to the engine

Posted on Feb 15, 2009

  • 21 Answers

SOURCE: 2004 jetta/diesel engine/hard start cold

Have you checked all of your vacuum hoses for leaks? Any vacuum leak, even intake manifold or throttle body gasket, will cause an engine stall right after starting. Likewise with a fuel pressure problem. If you aren't getting voltage, maybe whatever switch starts your glow plug cycle(either turning ignition on or opening driver door, depending on model) is defective, or any of the wiring of the circuit. It's a cheaper guess.

Posted on Feb 26, 2009

  • 80 Answers

SOURCE: Rough Idling, start-up early morning, until engine heats-up

this may be a sticking air flue meter take a matchstick .and push it into the hose this will let more air in if this works change the air flue meter

Posted on May 04, 2009

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1 Answer

Citroen relay van 2.0L HDI


Have a load test done on the battery as the glo-plugs should get very hot very quickly. Diesel engines have to have a high rpm crank speed or they will not start and will leave unburnt fuel in the cylinders ( wet glo- plugs). Every indication is that the battery is flat or is not the right capacity for the car.

Dec 01, 2013 | Citroen Cars & Trucks

Tip

Diesel has trouble starting


hi, if you have any problems starting any type of diesel engine then this is a very good indication that one or more of the glow plugs need replacing, to get you home you can try turning the ignition on and then wait for the glow plug light to go off then instead of trying to start the engine turn it off then back on again, doing this usually gets it started just to get you home but this wont allways work.

Its best you replace glow plugs sooner rather than later as it could leave you stuck without a vehicle.

To change the glow plugs follow these quick instructions.
1. Look where the injectors go into the cylinder head then just under these you will see a smaller plug that will have a fixed wire this wire will be running from glow plug to glow plug this wire is held onto the glow plug by an 8m nut undo this nut on top of all the glow plugs, once undone you will notice that one of the glow plugs has two wires the other wire is the wire that carries the power to all the glow plugs so just remember witch glow plug this goes to.
2. now once you have removed the connecting power wire remember witch way it runs so as to get it back on the right way round it doesnt matter to much but might be a bit tight if you put it on the wrong way round.
3. Now how to undo and remove the glow plugs: To remove you will need a deep 10m socket place this over the top of the glow plug push down to ensure tight fit then undo this glow plug will then pull out (make sure their is no muck around the glow plug that can fall inside the cylinder so just check)
once you have it out its best you replace all the glow plugs as once one goes you will find that the others wont be to far behind.
4. Fitting new glow plugs. When your fitting the new glow plugs put them into their hole and gently screw in by hand to make sure you dont cross thread the thread as this can be a nightmare to put right. tighten the glow plugs in as much as you can by hand then nip them up using 10m socket and extension bar now dont over tighten them as this will damage the thread just tighten up till just after they stop then you should find they are ok.
Refit the wire loom on top of all the glow plugs remembering to fit the main power wire to the first plug make sure you tighten the nuts up properly on top holding the wire in place.
Once you have done this you are now ready to start your vehicle you should now find it starts with no problems.

If you still have problems starting you need to now start looking at things like the diesel filter or even the diesel pump, ill explain about these in my next post ok

on Dec 01, 2009 | Ford F-350 Cars & Trucks

1 Answer

91 f350 7.3 desiel starts then dies lots of crankin 2 get started back once its started run great


Check for power on the glow plugs. You have two fusible links on the passenger side by the stater relay and a plug going over to the engine. These plugs get intermittent and that can cause your hard starting; the glow plugs themselves maybe burnt off. I've seen this happen with the other Ford diesels in our tow trucks!

Aug 01, 2012 | 1991 Ford F350

1 Answer

Glow plug for diesels


year model? Engine size? I need a little more information than ford won't start when cold. I would guess either the glow plug relay or the actual glow plugs themselves are bad, but usually the glow plug relay, because if it were just one or two glow plugs it would start, but run like ****.

Nov 27, 2011 | Ford F-150 Cars & Trucks

1 Answer

Hyundai Accent 1.5 Diesel. Intermittent problem with starting. Sometimes starts and runs fine. However sometimes on starting car will not run above 750 rpm and throws out HUGE clouds of black smoke. ...


it sounds like a glow plug issue. perhaps a bad glow plug relay. I would think its the relay if the problem comes and goes. If it were a bad glow plug the problem would be constant. check for volts at the glow plugs next time the car acts up. If you find no volts, tap on the glow plug relay next time you turn the key on. This may cause it to activate. if so then replace relay

Jan 05, 2011 | 2003 Hyundai Accent

3 Answers

Expert van 2lhdi 2005 very poor starting in cold weather had glow plugs and relay fitted still no better. i only do 3000 a year and mainly short jouneys less the 5 miles. new battery last year. it does...


Firstly fit a manual overide to the heater plugs .relay -push button type switch -wire -connectors ,run a wire direct from battery to relay ,other side to heater plug relay output so it feeds all the heaters ,push button inside cab with a 12v feed from ignition switch running to relay then other side of relay to earth ,leave vehicle on charge often on trickle charge where possible ,also on a full tank of diesel put in a litre of petrol to stop diesel waxing up ,nice old rug or blanket over engine and it will first time every time ,only use the petrol when weather below minus 5c though ,great vehicles these peugeots but i do like my ford transit

Dec 19, 2010 | Peugeot 604 Cars & Trucks

2 Answers

Diesel engine wont start when cold


check the wireing to the glo-plugs.... sounds like they are'nt getting juice

Jan 26, 2010 | 1983 Jeep CJ7

2 Answers

2000 Chevy 3500 Express Van Cranks but doesnt start


SOUND LIKE INOPERATIVE GLOW PLUGS. THE GLOW PLUG RELAY OR CONTROLLER COULD BE THE PROBLEM.LET DEALERSHIP FIX IT.YOU NEED CERTAIN TOOLS TO WORK ON DIESEL ENGINES.

Aug 17, 2009 | 2000 Chevrolet Express Cargo

1 Answer

I have change the glow plug relay its brand new bt i didnt change the glow plug will that cause it not to start


The operatoin of the glow plugs heat up the combuston chamber before turning over the engine. ONce the fuel hits the combustoin chamber , The fuel will ignite.

The diesel engine only runs on air and fuel .

The glow plugs are basically a resistor that heats up the combustion chamber or pre combustion chamber.

So if the glow plugs are getting power now that the relay is change out , Yes the glow plugs have a major roll in starting the engne.

I hope this was helpful

Mar 26, 2009 | 1992 Ford F250

3 Answers

1993 f250 diesel engine won't start


it could if it was diesel, but if it is gas engine check the coil

Aug 04, 2008 | 1993 Ford F250

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