Outer Limits 4x4 Board

I have a '93 Vitara that "breaks down" under load like it's starving for fuel. Have replaced the fuel pump & filter and ignition leads and had the carby rebuilt and it still happens intermitantly!!!!!!!!!Also a new dizzy cap..... Anyone got any usefull ideas as sacraficial burning is on the cards.

have you checked for air leaks around the intake?
I have also seen a few choke issues on the zuki carbi's.
How clogged up is the fuel filter?
Have you put a electric fuel pump on it or replaced the mechanical one?

it has new fuel filter on it this was done at the same time as the fuel pump (mechanical).

This even has the mechanic stumped..... If anyone has experienced this proplem or something similar I would really like to hear your thoughts.....

Thanks

How old is the fuel?

BlueSuzy wrote:How old is the fuel?

Straight out of servo so "How long is a piece of string" comes to mind???

How long have you owned it? A few litres of bad fuel can do this thats all. I know what you mean by how long is string. Any fuel station could be giving sh!t fuel.

Have you checked for air leaks????????

Start the engine let it run. spray some carby cleaner around the intake tube and base of the carby without getting any in the intake. If it changes revs you have a air leak. find it fix it.

I had a commodore that was doing a smiliar thing it ended up being a dirty batch of fuel that blocked the mesh on the pickup in the tank.

Thanks for the replys

We have owned it since xmas and it drove perfectly for 2 months, we had it serviced and thats when it started to play up, it went back to the mechanic but he stood that and said "I dounno". So I took it to the mechanic that services all our work vehicles, so far it has had the following

new leads
new manifold hose
new fuel pump
new fuel filter
carb kit
inspection of fuel tank and pick up (no faults found)
inspection of cat and exhaust ( no problems found)
new coil

and still we have this intermitten problem.

Andy

Is it a inline fuel filter or cartridge?

Is the dizzy shagged? any float in the main shaft?

Otherwise a vac leak is a huge possibility.

check the contact in the connector that powers the fuel cut out solenoid.

ZookStock wrote:Blinker fluid - Definitely sounds like the blinker fluid is low. Top that up and she'll be good to go.

Don't you fill that up through the dizzy cap?

Valve clearances can do this too...

I'm having the same issues. Mechanic says it's electrical, leco says it's mechanical....

Time to start throwing parts at it...

Please keep us up to date if you try anything else, I will do the same

EDIT : I just realised the OP has a carby, I have and EFI

Have you checked for air leaks like VW Dave suggested a few times?

eXc wrote:I'm having the same issues. Mechanic says it's electrical, leco says it's mechanical....

Time to start throwing A EFI at it.

Please keep us up to date if you try anything else, I will do the same

Fixed

grimbo wrote:Have you checked for air leaks like VW Dave suggested a few times?

Yes Mind you, I have never done it before, so possibly did it wrong.

Have you changed your spark plugs .
Even though you have new leads , check there resistance and post up your readings . When you remove your spark plugs , do they all look the same .
Also what condition is your air filter in .

Just thought I'd reply - I found the issue in mine...short on wiring harness.

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