Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.

New Posts Contact us

Just Commodores Forum Community

It takes just a moment to join our fantastic community

Register

What would cause a VN V6 to drink enormous amounts of fuel??

futronix

New Member
Joined
Sep 29, 2005
Messages
202
Reaction score
2
Points
0
Age
41
Location
Melbourne
Members Ride
2012 VE SV6 MY12.5
Hi...

Big problem... My bro's car is drinking an enormous amount of fuel....

lets just say 15 litres of fuel is gettin him about 40km's.. and thats with very light throttle.

no theres no obvious fuel leaks on the tank or on the lines and the exhaust is not smoking as to say its running rich....

i doubt the O2 would would have to do anyhting with it.... or the fuel filter...

but where else should i be lookin for a obvious leak?? i doubt the engine could be sucking that much fuel... its gotta be a leak but from where???
:bang:

oh yeah is there a AFM on VN's?? where is the fruk is it??
 

PaRaDoX

Because Racecouch...
Joined
Apr 16, 2005
Messages
3,286
Reaction score
34
Points
48
Location
Melbourne, Victoria
Members Ride
none
my car was using 100L/100km once, check your rockers, (remove rocker covers) one of my rockers was bascially unbolted and i was running on 5 pretty much wasnt opening a valve... maybe also a leak in your inlet manifold, can u smell any fuel??? check that your injectors are sitting in properly because that is serious fuel wastage, its like 35L/100km???
 

futronix

New Member
Joined
Sep 29, 2005
Messages
202
Reaction score
2
Points
0
Age
41
Location
Melbourne
Members Ride
2012 VE SV6 MY12.5
cheers for your reply.. ill pull of the covers later... ive checked injectors and intake rail seems fine no leaks or fuel smell...
 

futronix

New Member
Joined
Sep 29, 2005
Messages
202
Reaction score
2
Points
0
Age
41
Location
Melbourne
Members Ride
2012 VE SV6 MY12.5
exhaust smell isnt rich.. doesnt miss

but yeah cant hurt to replace the fuel filter,... actually yes it can u get petrol in your eyes!!!!!!!!!!!!!!!!! but its worth it
willl change it if all else fails.... its called depressurizing the system before u flong the hose off... :thumbsup: I learnt the hard way....
 

FXST01

The Grey Man
Joined
Jun 3, 2005
Messages
1,108
Reaction score
47
Points
48
Location
Perth, WA
Members Ride
VP V6 Exec
Check what pressure your fuel regulator is at, or just renew it

Check you air filter, sparkplugs are gapped correctly, vacuum leaks, faulty coolant sensor, faulty thermostat and lastly the MAT and MAP sensors.
 

mitch89

New Member
Joined
Oct 22, 2006
Messages
7
Reaction score
0
Points
0
Members Ride
VN Wagon
i had a similar prob, injectors needed replacing and ecu needed rewiring
 

xcop5l

4th year spanner spinner
Joined
Jun 19, 2006
Messages
977
Reaction score
11
Points
0
Location
ol' geelong vic
Members Ride
VN ex cop 5L
follow the fuel lines from the pump right up to the engine you might have a pin hole in the fuel pipes.
 

futronix

New Member
Joined
Sep 29, 2005
Messages
202
Reaction score
2
Points
0
Age
41
Location
Melbourne
Members Ride
2012 VE SV6 MY12.5
im gonna have a look over the lines tommorow.

btw its a BT1 if that makes a difference....
 

PaRaDoX

Because Racecouch...
Joined
Apr 16, 2005
Messages
3,286
Reaction score
34
Points
48
Location
Melbourne, Victoria
Members Ride
none
its called depressurizing the system before u flong the hose off... :thumbsup: I learnt the hard way....
LOL i know what it is, but when your cars a freak and the fuel pump dosnt seize when you rip the relay then your left with no option :(
 
Top