crank sensor

fett · Dec 30, 2009

Does a 1990 3.9 v8 classic have a crank sensor?

The guy at the garage called and says he has now tried everything apart from crank sensor and ecu and he is getting a crank sensor in for the 4th to try it. They are £60 and if it doesnt work he will send that back and get a used ecu for between £70 and £110.

Last I heard we thought my classic didnt have a crank sensor, what do you guys think?

SpudH · Dec 30, 2009

I can't find any mention of a crank sensor for the 3.9 in the Workshop manual or in the ETM

eightinavee · Dec 30, 2009

I think you need to find a garage that knows what they are doing,no,it does not have a crank sensor.If there is no spark ALL the ignition components can be tested,no need to do a "Parts Shotgun" firing new bits at it to see what makes it go.

gavbriggs · Dec 30, 2009

if it has a dizzy then theres no crank sensor, the crank sensor does the job of the dizzy in a sense (thats the most crude sense too)

fett · Dec 30, 2009

It has a spark and fuel but wont run, I recon ECU then?

I might try and tell him tomorrow but , there aint no point ****in him off, I still got a bill comin lol

SpudH · Dec 30, 2009

fett said:
It has a spark and fuel but wont run, I recon ECU then?

Spark and fuel? only 2 left, compression and timing! I presume you've had the compression tested?

fett · Dec 30, 2009

I dont know if they have done that yet , but it can have lost all compression overnight when running fine the day before??

gavbriggs · Dec 30, 2009

sounds like the stribby is on 180 degs wrong or summat????

ssmn1234 · Dec 31, 2009

gavbriggs said:
sounds like the stribby is on 180 degs wrong or summat????

Good point there Gav. maybe the mobile mechanic coulda mixed the plug wires up, seein he done a proper job of the coil wires an all.

classic kev · Dec 31, 2009

Like the guys have indicated above start at the begining and work through it.

All you need is a decent digital volt meter and you can check and test the ignition system. If you're not careful you'll end up throwing a ridiculous amount of money at it and not be any the wiser. If there is a spark and you have fuel then there is something silly causing the problem. Patience and common sense should see it sorted.

fett · Dec 31, 2009

well its in there hands now , my confidence in them is waining a little re the crank sensor but if he isnt charging me for parts it doesnt need then he is probably just stalling for time as its been two weeks since I originally booked it in!

I am temped to buy a three door on carbs as this is Boloks!

Beast o Bodmin · Dec 31, 2009

fit carbs to that.....

Beast o Bodmin · Dec 31, 2009

fixed my 4.0 for good....

fett · Dec 31, 2009

I would like summit pre 73 so I dont have to bay Gordo every year!

Beast o Bodmin · Dec 31, 2009

if it all matches up on numbers here go look...

RANGE ROVER 2 DOOR 1971 TAX EXEMPT on eBay (end time 03-Jan-10 11:59:21 GMT)

crank sensor

fett

Well-Known Member

SpudH

Well-Known Member

eightinavee

Well-Known Member

gavbriggs

Well-Known Member

fett

Well-Known Member

SpudH

Well-Known Member

fett

Well-Known Member

gavbriggs

Well-Known Member

ssmn1234

Active Member

classic kev

Well-Known Member

fett

Well-Known Member

Beast o Bodmin

Banned

Beast o Bodmin

Banned

fett

Well-Known Member

Beast o Bodmin

Banned

Similar threads