Diesel hard to start

Post by **pegasus** » Mon Apr 28, 2003 5:29 pm

Hi all

I am having trouble starting my car in the mornings, or when it has been left for long periods of time (like more then 7 or so hours).

It turns over fine, but a lot of times before it fires. I can then turn it on and off as I please. I turn it over in periods of maybe 15 or so cranks, and I have to do this 4 or 5 times before it fires. Each time with a small break in between.

I am thinking either glow plugs or fuel pressure being lost.

Its a 2.4 litre (2L) motor from my 4Runner.

What do you think?

Stew

Post by **MissDrew** » Mon Apr 28, 2003 6:15 pm

glow plugs

Post by **NICK** » Mon Apr 28, 2003 7:19 pm

glow plugs

Post by **landy_man** » Mon Apr 28, 2003 8:14 pm

glow plugs

:wink:

Post by **robbie** » Mon Apr 28, 2003 8:44 pm

just to confirm that...

GLOW PLUGS if you missed the first 3 answers :shock:

Post by **MissDrew** » Mon Apr 28, 2003 8:54 pm

I like this topic as its an engine question that even I knew :lol:

and to top it off I was first to reply :finger:

Post by **RUFF** » Mon Apr 28, 2003 8:59 pm

Glow Plug

Timer :roll:

Post by **pegasus** » Mon Apr 28, 2003 10:28 pm

ok, Lets see if I have gotten this correct,

Its the GLOW PLUGS right??

Post by **POS** » Mon Apr 28, 2003 10:41 pm

GLOW PLUGS!

Is that what female GLOW WORMS use when its that time of the month :lol:

(sorry of topic but i thought it was funny)

Post by **Ryan** » Mon Apr 28, 2003 10:54 pm

im gunna say it has something to do with fuel pressure being lost like you first suggested................ just to be different :finger:

Post by **RoldIT** » Mon Apr 28, 2003 11:26 pm

Battery

Post by **RoldIT** » Mon Apr 28, 2003 11:27 pm

Woops ... I meant glow plugs. :finger:

Post by **BundyRumandCoke** » Tue Apr 29, 2003 9:48 am

Its probably the ambient temperature within the combustion chambers not being compatable with the regulated air/fuel charge being ingested into aforementioned combustion chambers. Common symptoms of this condition are - It turns over fine, but a lot of times before it fires. I can then turn it on and off as I please. I turn it over in periods of maybe 15 or so cranks, and I have to do this 4 or 5 times before it fires. Each time with a small break in between. Try-

NEW GLOW PLUGS

Post by **robbie** » Tue Apr 29, 2003 10:56 am

BundyRumandCoke wrote:Its probably the ambient temperature within the combustion chambers not being compatable with the regulated air/fuel charge being ingested into aforementioned combustion chambers. Common symptoms of this condition are - It turns over fine, but a lot of times before it fires. I can then turn it on and off as I please. I turn it over in periods of maybe 15 or so cranks, and I have to do this 4 or 5 times before it fires. Each time with a small break in between. Try-

NEW GLOW PLUGS

Post by **ToNkA** » Tue Apr 29, 2003 11:12 am

Blinker Fluid?

Post by **robbie** » Tue Apr 29, 2003 11:19 am

ToNkA wrote:Blinker Fluid?

tonka, have you got any spare blinker fluid? i may need some :finger:

Post by **pegasus** » Tue Apr 29, 2003 2:20 pm

Are you sure its not a fuel pressure problem?

Post by **ISUZUROVER** » Tue Apr 29, 2003 4:14 pm

pegasus wrote:Are you sure its not a fuel pressure problem?

As others have said ... most likely GLOW PLUGS

It could possibly be a problem with the injectors (i.e. - stuffed nozzles/bad spray pattern/popoff pressures) but this would be noticeable by bad/rough running when cold and maybe at other times, and probably excessive smoking.

If the injector pump wasn't delivering enough pressure then it would be down on power, not just be hard to start.

Post by **Maddog** » Tue Apr 29, 2003 7:20 pm

Wrong key?

Post by **pegasus** » Tue Apr 29, 2003 7:26 pm

I did check the key, it did seem ok, but then again, its a Toyota, 1 key fits all..........

I think I may have left the wipers on, yes, I think I left the wipers on, that would answer a few things..............

Post by **bubs** » Tue Apr 29, 2003 10:48 pm

to test glow plugs - a diesel mechanic mate of my old mans (rebuilt my 2L) showed me a trick

pull out the glow plug - get a length of wire and connect that to the glow plug and the positive on the battery - place a small amount of oil on the other end of the glow plug and then earth it on the negative terminal - the oil will smoke almost instantaneously (sp?)

Post by **ToNkA** » Tue Apr 29, 2003 11:03 pm

Just as easy it to use a multimeter and check the resistance of the plug, it should be 0.

Post by **pegasus** » Tue Apr 29, 2003 11:04 pm

ok, thanks Bubs, I will try that.

Probably get new glow plugs anyway, they are cheap, I have no idea if they have ever been replaced before.

Post by **duncan** » Wed Apr 30, 2003 3:34 pm

Could be a couple of things first run a cable of very large diameter from your positive terminal to the aluminimum strip that runs across the top of your glow plugs useing welding gloves hold it conected for about a count of 20 then try to start the car if it starts its bad conections to your glow plugs pull all the conections apart and put some ZINC OXIDE GREASE on all the conections its what the auto sparks use

If it still dosent want to start check the resistance of your glow plugs if there originals probable replace them there not that expensive just make sure you get the right voltage ones for your car as 60 series ones have 3 different voltages depending on the year

Lastly you didnt say if once you get it started it can be started easily for the next couple of times if so on top of your injector pump are valves that hold the fuel in the injector lines at high presure if they are leaking then it takes time at start up to build up enough pressure to start the car it will run at first like a petrol with a miss fire untill all the air is bled from the system

Just some info from a back yard mechanic whos had these sorts of problem before would suggest you get the greas and pull every connection apart on your car and re grease will save you alot of money in the long run if your playing in mud and corosive enviroment

Post by **pegasus** » Wed Apr 30, 2003 3:47 pm

Duncan

Thanks heaps for your reply.

I will probably replace the plugs anyway, I have no idea of their history. After it starts, it runs fine (cold but), and can be turned on and off as I please and it is fine.

Stew

Post by **DAZZ** » Fri May 02, 2003 10:13 am

robbie wrote:
ToNkA wrote:Blinker Fluid?

tonka, have you got any spare blinker fluid? i may need some

Have rang Toyota spares about blinker fluid... It's on backorder for about 6-8 weeks. Seems that the blinker fluid factory (only one in Japan) has cut production due to a shortage of raw material.......

:rofl:

Blinker fluid.....

Post by **tojo86** » Sun May 04, 2003 11:05 am

possably glow plug relays-timer. to check glow plugs use ohm-meterto see if there is continuity between plug and earth. continuity good-no cont throw plug into nearest ocean :lol:

Post by **NICK** » Sun May 04, 2003 11:23 am

it is none of the above, it needs to spend a day in the booty fab offroad workshop. My spent the day there yesterday, before it struggled to turn 35's, 5.29 gears, no it is wheel spinning into 3rd and slipping the clutch throught 1 and 2. Time for a brass plate.

NICK

Post by **RUFF** » Sun May 04, 2003 12:41 pm

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Diesel hard to start

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