Hello Guys,
A picture is worth 1000 words so I shall post them before I describe the issue.
The circle represents the area of the engine that i am talking about.
A little while ago while prodding around in my engine to try and figure out where the smell of petrol in the cabin was coming from, i noticed that a hose was melted (going from B to A, still attached to A). So I got some rubber tubeing and replaced the tube from B to A. Petrol comes out B, and theres some kind of suction into A.
Is anyone able to tell me what this is (I have no idea hehe).
It ran fine for a while, but when the cable is on nowadays the rev's fluctuate and the car stalls if it idles. It runs fine without the hose albeit leaking petrol into my engine bay. Im stumped as to what it could be
Kind regards,
Frag.
that's your fuel pressure regulator. there should be a vacuum hose between a and b, your description should read petrol comes out of A, which means the fuel pressure regulator is bugged and fuel is leaking through the diaphragm in the regulator
replace the reg and replace the hose. your rough idle is vacuum leak at point b. hose between a and b will solve idle issue but a new fuel pressure reg will solve fuel smell
Originally Posted by Adam Savage (mythbusters)
Sorry moff my mistake, you are right i switched the letters incorrectly. Thankyou for your reply![]()
It actually doesnt run when a vacuum hose it on there. (That is to say when petrol is squirting around the engine bay it runs fine). I bought a new hose, and even a couple of clamps to ensure that it was tight, and it still doesnt run. It just shudders to a stall unless i keep my foot hard on the accelerator, and is near impossible to start. This isnt an issue when the hose isnt attached. I think it works when it shouldnt and doesnt work when it should![]()
Like moff_man says, your regulator is stuffed and needs replacing as it's the diaphragm inside the regulator that is leaking petrol into the vacuum line.
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Just so you know this happened as a result of stale fuel. I'll say you only run it on LPG and never on petrol.
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