Intermittant trouble starting

[Tornado T5]

Hi All,
Going to book with auto elec for the following trouble and hoped some here could add some thoughts in the mean time.

Van starts normally 9 times out of ten However that 1/10 when hot, soon after switch off, it will crank like the battery is just about dead. It took three goes to start yesterday for example where every attempt it seemed like the battery was providing less juice each time. 4th go and it started like nothing was wrong. I'm thinking it's most likely the starter buy wonder why it would start normally most times and then almost fail once. My battery is actually the original, that is dates back to June 2007. Van has done just over 201,000km.

[Rebuild]

Maybe try a new battery.Yours sounds like it has had a good run.Have you had it checked?
I'm also thinking an intermittent bad connection
You have checked the battery terminals for security/tightness

[Transporter]

Get the startermotor tested as well as the battery. Did you have the recall 97W8 done?

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[Tornado T5]

Battery was checked recently. As to recall, I think there is a sticker on the inside of the door opening, will check in the morning. If not what was it in reference to? Thanks so far.
Edit: just remembered that's the cooling fan problem, never heard the fan run for too long after shutdown.

[Transporter]

It's related to the electrical wiring from front of the vehicle to the inside fuse box. Volkswagen—Volkswagen Transporter

Never take too seriously the description of the recall. The fusebox recall for 2010 Tiguan is a good example that. The description of the possible fault doesn't say what actually happens when that component fails.

[Tornado T5]

Thanks Transporter.

[jfoldbar]

Hi All,
Going to book with auto elec for the following trouble and hoped some here could add some thoughts in the mean time.

Van starts normally 9 times out of ten However that 1/10 when hot, soon after switch off, it will crank like the battery is just about dead. It took three goes to start yesterday for example where every attempt it seemed like the battery was providing less juice each time. 4th go and it started like nothing was wrong. I'm thinking it's most likely the starter buy wonder why it would start normally most times and then almost fail once. My battery is actually the original, that is dates back to June 2007. Van has done just over 201,000km.

my van had exactly the same symptoms. i changed the tandem pump at the same time for a totally different reason and to my surprise these symptoms were also gone. it doesnt make sense to me i dont see how it could have happened, but that was just my experience.
are the slow crank symptoms the only ones you have, or is there anything else?

[Tornado T5]

Just slow crank like a dead battery, almost always when warm/hot and then after upto three goes, will start normally. But it's intermittent apart from warm/hot when it does it. Never done it cold or first start of the day and van is parked outdoors.

[Umai Naa!!]

If it's slow to crank when hot, I'd be looking at the starter motor.

[Tornado T5]

First point of call just struggling for some time and I know it gets more risky delaying it. At least on country runs I can keep the engine running lol, can't lock it with engine running in metro areas. I haven't even looked to find the starter motor such has been my trouble free driving apart from camshaft last Nov.

[Umai Naa!!]

Starter motor is on top of the gearbox.

[Sunny43.5]

Manual or auto you could always push start it or roll down hill if its a manual , only a suggestion .

[Tornado T5]

Manual or auto you could always push start it or roll down hill if its a manual , only a suggestion .

Would need to do a conversion to a manual first...

[Sunny43.5]

Bugger !

Would need to do a conversion to a manual first...

[Splitn]

Just slow crank like a dead battery, almost always when warm/hot and then after upto three goes, will start normally. But it's intermittent apart from warm/hot when it does it. Never done it cold or first start of the day and van is parked outdoors.

I've had the same issue, My theory it is connected how you use the air-conditioner, which would explain the only hot weather and never the first start of the day. Because how the air-con compressor is connected to the engine, if the engine is stopped with the air-con still on the compressor can still be under load. When you want to start the engine again soon after this would cause a restriction to starting. My T5 is a 6sp manual 4motion lwb ex NSW ambo and If I ever stalled the van with the air-con it would always happen.
Just my theory mind you, but I have made a point of turning off my air-con before I turn the engine off and I think it has happened a lot less.