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[terry paget]

Fuse 2 in the engine bay still intact?

Diddy one in a block of 6. 25a...

Yes, checked that this morning.

[Doctor Gollum]

Fuse 7? Another Diddy one, 15a just across the gap from F2. 

[terry paget]

Fuse 7? Another Diddy one, 15a just across the gap from F2. 

Fuse 7 is OK too.
There are eight relays in the front box. I don't see in Haynes or the owner's handbook what they do. Might one of them be responsible?

[Doctor Gollum]

Tap the top of K1 with the key held at crank.

K1 is the sodding great red relay.

And report back

[terry paget]

Tap the top of K1 with the key held at crank.

K1 is the sodding great red relay.

And report back

Did that, nothing happened.

[terry paget]

Quickie diagnosis:


Bridge the terminals on the starter with a screwdriver.


 If it turns, you need to check the wiring with a mutimeter.
If it doesn't turn, the starter is poor. Give it a hefty whack and try again. If that works, you can now drive the car to your nearest supplier of replacement parts - don't buy one off Ebay as you'll probably endup with a Chinese Yak52 one. Which won't match the fittings on your car

[terry paget]

Quickie diagnosis:


Bridge the terminals on the starter with a screwdriver.


 If it turns, you need to check the wiring with a mutimeter.
If it doesn't turn, the starter is poor. Give it a hefty whack and try again. If that works, you can now drive the car to your nearest supplier of replacement parts - don't buy one off Ebay as you'll probably endup with a Chinese Yak52 one. Which won't match the fittings on your car

Thanks, Nick. Now I understand your advice. On the Vectra, shorting the live and solenoid terminals needed more than a screwdriver, and the hefty whack is to free a sticky solenoid. I was impressed when son Jonny called out the AA when his car wouldn't start, the man 'just hit it with a hammer', and it started.

[Doctor Gollum]

Tap the top of K1 with the key held at crank.

K1 is the sodding great red relay.

And report back

Did that, nothing happened.

Repeat with K3 as that feeds K1

[terry paget]

Tap the top of K1 with the key held at crank.

K1 is the sodding great red relay.

And report back

Did that, nothing happened.

Repeat with K3 as that feeds K1

Did that, again nothing happened. In fact, I tapped all eight relays in turn, but nothing happened.

[Marks DTM Calib]

A lot of random bits of fault finding on here, its clear there is a start inhibit somewhere, do you have any fault codes in any of the systems?

[Doctor Gollum]

That's the trouble with diagnosing stuff over tinterweb...

Especially when details are random and sporadic

ie:

A "my carpets all wet"
B "Is the scuttle drain blocked?"
A "I don't think so."
B "Have you checked?"
A "Where is it?"
B "Passenger side under the pollen filter housing"

Three days later...

A "Found it."
B "The scuttle drain? Was it blocked?"
A "No, the leak. I left the sunroof open when I washed the car..."

[terry paget]

A lot of random bits of fault finding on here, its clear there is a start inhibit somewhere, do you have any fault codes in any of the systems?

Not yet, keep failing to connect my code readers. I have tried both cheapo code reader and laptop device in both this Vectra and the 07 car that is OK, but both say poor connection or ignition is not switched on. Will try again after lunch.

[Doctor Gollum]

Pedal trick it...

[terry paget]

Pedal trick it...

Pedal trick did not work. Nor did paper clip trick.
Code reader fine on Astra 2006, not on Vectra 2007 or Vectra 2008, bother.

[Doctor Gollum]

Have you tried jump starting it yet?