Griff won't start, fuel pump alive, starter isn't.
Griff won't start, fuel pump alive, starter isn't.
Author
Discussion

nicholasshaw

Original Poster:

77 posts

180 months

Monday 4th June 2012
quotequote all
Ignition on and there seems to be plenty of power in the battery, the fuel pump whirrs into life OK. If I turn the key to the starting position, nothing? I can't hear any relays clicking, the starter doesn't make a sound and the voltage reading on the in car gauge doesn't even flicker.

The starter motor was reconditioned last year and he whole alarm/immobiliser was replaced at the same time. I've checked all of the standard fuses, am I right in thinking the 100amp fuse is next on the list to check or should I be looking at something else.

On the plus side, I think the rain is back tomorrow!

Nick.

ChimpofDarkness

9,637 posts

203 months

Monday 4th June 2012
quotequote all
I suggest not making assumptions.

Go back to basics.

Start by using a test meter to prove or disprove the presence of 12v at the starter solenoid with the immobiliser is disengaged & the key is in the sprung start position.

If you have no live, run a temporary reliable 12v feed to the starter solenoid and see if the starter engages.

Irrespective of the previous repairs you have done it's likely to be one of three things.

1) An immobiliser fault

2) A faulty starter motor solenoid

3) A bad earth

Remember the worst mistake you can make in diagnostics is to assume just because you have replaced or reconditioned a component recently it's not going to be the one at fault again.

Assume nothing, test logically & systematically, & you will find the problem

Good luck, Dave.

nicholasshaw

Original Poster:

77 posts

180 months

Monday 4th June 2012
quotequote all
Thanks Dave. Steering clear of assumptions is fair advice. I'll get the multimeter out tomorrow and see if I can see what's changed, it's started faultlessly for months so maybe it didn't enjoy the hot weather.

Nick.

ChimpofDarkness

9,637 posts

203 months

Monday 4th June 2012
quotequote all
nicholasshaw said:
Thanks Dave. Steering clear of assumptions is fair advice. I'll get the multimeter out tomorrow and see if I can see what's changed, it's started faultlessly for months so maybe it didn't enjoy the hot weather.

Nick.
YHM.

nicholasshaw

Original Poster:

77 posts

180 months

Saturday 9th June 2012
quotequote all
OK, so I traced that to the trigger lead (In my head that's what it's called anyway) having dropped off the spade terminal on the starter - looking at it I'm more surprised it ever stayed on! The car now starts so I took it for a drive, got home with a big grin on my face only for it to disappear when I realised the dash warning lights were all still on after I'd turned the ignition off and removed the key!

I guess I've disturbed something but where should I start looking and what should I be looking for? The rats nest shoved in round the battery seems most likely as it's been in and out a few times while I've been clumsily fiddling.

The first ever bit of car fixing I'd attempted in my life was going so well! Not to worry.

nicholasshaw

Original Poster:

77 posts

180 months

Sunday 10th June 2012
quotequote all
So I did what any sane IT person would do and turned it off (disconnected the battery) and some time later turned it back on again (connected the battery). Everything now seems normal. Odd.

ChimpofDarkness

9,637 posts

203 months

Sunday 10th June 2012
quotequote all
nicholasshaw said:
So I did what any sane IT person would do and turned it off (disconnected the battery) and some time later turned it back on again (connected the battery). Everything now seems normal. Odd.
good result, the battery disconnect & reconnect resets the ECU & alarm/immobiliser system, neither of which have much to do with the dash lights, so my guess is you just got lucky. Still a good result though clap

nicholasshaw

Original Poster:

77 posts

180 months

Monday 11th June 2012
quotequote all
I agree, luck was definitely involved. I used the car a couple of times yesterday and couldn't recreate the problem so can't really follow it up.

Thanks for your assistance with the original fault, as we discussed it was good to have a calming influence before I got carried away!

Nick.

EGB

1,774 posts

181 months

Tuesday 12th June 2012
quotequote all
Nicholas.Glad you fixed it the painless logical way. I note on your profile, your Griff (same year as mine) has a gold plated TVR badge on bonnet. Very nice. Did you fix this. Where did you get it from?

nicholasshaw

Original Poster:

77 posts

180 months

Tuesday 12th June 2012
quotequote all
Sorry Eddie, the badges were all on the car when I got it and I've no idea where they came from. I've read a couple of posts recently that suggested gold badges were a factory option but, again, no idea if this is why mine has them.

5.0ltr

2,832 posts

223 months

Tuesday 12th June 2012
quotequote all
Leven used to do the gold badge on exchange.

PeteGriff

1,262 posts

181 months

Wednesday 13th June 2012
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EGB said:
Nicholas.Glad you fixed it the painless logical way. I note on your profile, your Griff (same year as mine) has a gold plated TVR badge on bonnet. Very nice. Did you fix this. Where did you get it from?
Hi EGB, my 4.3 Pre-Cat has gold badges on and from what I can tell came with them from new (believe they were special edition). Anyway, I have recently had both badges refurbished by LEVEN (aka Prestige Performance Cars), whereby they were replated gold as part of the refurb (see my earlier thread re my badges). They made a stunning job of them. Perhaps you could get your refurbished and specify gold? Regards, Pete