Fuel pump primes then nothing!!
Fuel pump primes then nothing!!
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MADMAX2

Original Poster:

2,336 posts

223 months

Monday 14th July 2014
quotequote all
Right chaps get your head round this one need a solution! Battery fully charged all fuses relays checked alarm deactivated immobiliser light off fuel pump primes and ... Nothing!!! Not even a faint click! It was acting strange a few weeks ago nothing then key back to 0 then started but Friday night half way through cranking it just stopped and now nothing took starter motor off tested ok solenoid cleaned connections all ok on starter so it's not the starter motor... got 12v going into ignition switch maybe the ignition switch is fubar? Or has the foxguard immobiliser relay gone? Would the fuel pump prime if it had? Car starts with a push start so I can get to a to b but then need a push again!! so does that rule out the immobiliser problem?


Your expert thoughts please !


ChimpOnGas

9,637 posts

208 months

Monday 14th July 2014
quotequote all
Thats classic imobilliser.

Two choices to sort it:

1. Replace = £550

2. Bypass = £0.50p

Your choice wink

SILICONEKIDOBHP

14,997 posts

260 months

Monday 14th July 2014
quotequote all
The big ends have gone ,pistons melted and the gearbox is shot rolleyes

phillpot

17,511 posts

212 months

Monday 14th July 2014
quotequote all
MADMAX2 said:
Your expert thoughts please !
Scrap ! wink



Classichim

12,424 posts

178 months

Monday 14th July 2014
quotequote all
No expert but mines doing my nut in,similarly mine sometimes primes but won't start, other times no matter what you do it won't prime at all, lock and unlock makes no difference ,,,,,,,,,,, you leave it for 20 mins and unlock then it works!???!
If you don't start it within the 20 seconds after you've unlocked it expect a long wait!
It's immobiliser related I feel!

wuckfitracing

991 posts

172 months

Monday 14th July 2014
quotequote all
They do strange things when the main earth from engine to chassis is either corroded or not making proper contact either end. Try clipping a jump lead from chassis to engine to eliminate this.

ClassiChimi

12,424 posts

178 months

Monday 14th July 2014
quotequote all
Cheers I'll try that, I've been playing around down there recently so you never know!

MADMAX2

Original Poster:

2,336 posts

223 months

Monday 14th July 2014
quotequote all
wuckfitracing said:
They do strange things when the main earth from engine to chassis is either corroded or not making proper contact either end. Try clipping a jump lead from chassis to engine to eliminate this.
Just done that no joy!

Chimpongas I'll go for the £0.50 bypass!!

Do you need to pm me the info?

shake n bake

2,221 posts

236 months

Monday 14th July 2014
quotequote all
How did you test the starter? I'd look at that unless your test is 100%.

MADMAX2

Original Poster:

2,336 posts

223 months

Monday 14th July 2014
quotequote all
shake n bake said:
How did you test the starter? I'd look at that unless your test is 100%.
Took it off went down local auto electric shop he tested it on his machine was working perfectly! Saw it with my own eyes!

shake n bake

2,221 posts

236 months

Monday 14th July 2014
quotequote all
MADMAX2 said:
Took it off went down local auto electric shop he tested it on his machine was working perfectly! Saw it with my own eyes!
Seems fair enough then!
I'd do the bipass on the immobilizer next, seems logical and a low cost exercise too.

shake n bake

2,221 posts

236 months

Monday 14th July 2014
quotequote all
Actually, scrap that, if it bumps them that would rule out the immobilizer, tends to point the finger at the ignition switch.

MADMAX2

Original Poster:

2,336 posts

223 months

Monday 14th July 2014
quotequote all
I've ordered an OEM ignition switch just in case

That's what I thought if it was the immobiliser at fault wouldn't it not bump start?

shake n bake

2,221 posts

236 months

Monday 14th July 2014
quotequote all
MADMAX2 said:
I've ordered an OEM ignition switch just in case

That's what I thought if it was the immobiliser at fault wouldn't it not bump start?
I'd agree with that logic, if there wasn't a clear signal from the immobiliser them it wouldn't fire on a bump start I think.
Then again logic says my mirrors should work as everything has a clear signal but the bloody things still won't go!

MADMAX2

Original Poster:

2,336 posts

223 months

Monday 14th July 2014
quotequote all
shake n bake said:
MADMAX2 said:
I've ordered an OEM ignition switch just in case

That's what I thought if it was the immobiliser at fault wouldn't it not bump start?
I'd agree with that logic, if there wasn't a clear signal from the immobiliser them it wouldn't fire on a bump start I think.
Would you agree with that Chimpongas?

rigga

8,806 posts

230 months

Monday 14th July 2014
quotequote all
Mine was doing this, the Immobilizer had a ring around the ignition lock that recognised the chip in the fob on the key ring, well it didnt because I'd disturbed it whilst having the column cowlings off to do something, thought it was the ignition switch myself and replaced that before I twigged what it was, repositioned ring and all good.


Your Immobilizer might well be very different in operation and set up tho biggrin

MADMAX2

Original Poster:

2,336 posts

223 months

Monday 14th July 2014
quotequote all
rigga said:
Mine was doing this, the Immobilizer had a ring around the ignition lock that recognised the chip in the fob on the key ring, well it didnt because I'd disturbed it whilst having the column cowlings off to do something, thought it was the ignition switch myself and replaced that before I twigged what it was, repositioned ring and all good.


Your Immobilizer might well be very different in operation and set up tho biggrin
is yours a Meta? mines the Foxguard

rigga

8,806 posts

230 months

Monday 14th July 2014
quotequote all
MADMAX2 said:
is yours a Meta? mines the Foxguard
Its a toad system, but principle of the cause of the fault may be the same, may not, but it's extra things to check off.

Richard 858

1,882 posts

164 months

Monday 14th July 2014
quotequote all
SILICONEKIDOBHP said:
The big ends have gone ,pistons melted and the gearbox is shot rolleyes
FFS !


Aussie John

1,021 posts

260 months

Monday 14th July 2014
quotequote all
If you just run a temporary wire from the ign switch direct to the starter solenoid it should work.