Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[jordan890]

after 10 to 15  minutes while on petrol the engine starts to surge i have cleaned the throttle body checked for cracks on the inlet manifold all seems to be ok the car is a 2 ltr duel fuel omega cd has eny one got eny ideaswhat could be causing this :-?

[Malcolm_D]

By surging do you mean that the revs keep going up and down on their own? If so is it doing this on idle? My problem was on a 2.5 V6 petrol, after getting warm on idle it would go from normal idle to 1200 rpm and back constantly.

[jordan890]

yes thats what it is doing and it also speeds up by itself :-?

[jordan890]

did you manage to fix this and if so what was causing it :-?

[Malcolm_D]

Don't ask me how much I wasted by getting the garage to attempt to fix it! The general consensus is that was an air leak somewhere on the breather side, Daz (Darth Loo Knee) had a quick look when he was over and he was certain that this was the problem. The trouble is that it can be a tiny leak and a pig to locate. I have had the plenum and breather pipes off a couple of times meticuously cleaning and checking that they are airtight, it appears to have worked although I never found anything conclusive. A further common cause is the idle control valve (ICV). If you are looking for expert help Daz is a man to talk to.