Post queries regarding your Mk3 Cavalier's fuel system (including ECUs) and exhaust here
#86586 by cavaliersri
Mon Apr 23, 2012 8:47 pm
hi there.can anyone tellm where the fuel pump is on a 2.0 ecotec cavalier.its a n reg saloon.on my cavi sri which is a H reg it was on the chassis leg.as im only using the n reg shell to reshell mine id like to keep it as original to mine as possible.

thanks
#86587 by Gaz
Mon Apr 23, 2012 8:51 pm
its in the tank under the cover under the back seat
#86590 by Cavalier342
Mon Apr 23, 2012 9:14 pm
As Gaz said, its the pump/float arm/filter assembly in one. Pop the seat bench out, pull the carpet cut-out square out, and pop off the round rubber plug. Then undo the 8 or 9 bolts, unclip the wiring plug and it comes out.
#86591 by Gaz
Mon Apr 23, 2012 9:16 pm
Cavalier342 wrote:As Gaz said, its the pump/float arm/filter assembly in one. Pop the seat bench out, pull the carpet cut-out square out, and pop off the round rubber plug. Then undo the 8 or 9 bolts, unclip the wiring plug and it comes out.


err no its not, its just the pump, the filter is on the back of the tank and the level arm is a different unit on the bottom
#86592 by Cavalier342
Mon Apr 23, 2012 9:20 pm
Ye, I meant the small filter on the bottom of the pump. I thought the float arm was there as well.. oh my bad then.
#86596 by cavaliersri
Mon Apr 23, 2012 9:34 pm
cheers.can i use that petrol tank and just take out the pump and use my own or would i have to change the tank.the tank on it is new and mine is old.

i appreciate the help
thanks guys.
#86597 by Gaz
Mon Apr 23, 2012 9:37 pm
tbh i wouldnt bother changing the tank or the pump just leave it be.
#86598 by cavaliersri
Mon Apr 23, 2012 9:40 pm
i wasnt sure if the ecotec would have a different fuel preasure pump to mine as mine is an 8v.if it is the same i will just leave it.
#86599 by Gaz
Mon Apr 23, 2012 9:53 pm
it'll be fine and tbh its newer so probably a bit more life left in it.
Fuel pressure is regulated at the rail not the pump
#86600 by Robsey
Mon Apr 23, 2012 10:01 pm
Only the single point injection pumps are no good for your set-up

These only run at 0.7bar (approx), whereas all multi-point engines including 2.0 litre units run at a much higher pressure than this.. approx 2.3 bar or higher, I think.

So as Gaz says, just keep the tank and pump as they are, if they are in better condition.
#86602 by cavaliersri
Mon Apr 23, 2012 10:04 pm
thanks guys. will do.im sure ill be back with loads more questions as this is my first rebuild

Who is online

Users browsing this forum: No registered users and 0 guests