For the first time ever, my AU dual fuel (Tickford Gas) backfired last week. The system was supposed to have been serviced 3,000km ago (at 80K) and it happened on a day that I was running it on petrol (about 30km) and before that on gas (for about ~700km). I stopped at the servo to fill up the gas, and as I was leaving, the car back fired. A few km before the servo, I flicked it over to LPG, so that day it was 30km or so on petrol then 2km on gas. What does this backfiring mean? It only happened then so not too sure what I should make of it. Any help on what it could be would be good :) Cheers
You might want to check you plugs and leads. Thats what I have noticed with my taxi's. Usually when they start to backfire on gas and definatly on petrol I have to change the plugs and leads. If it stops it from happening again then the problem is fixed. If it still runs like shit on gas and continues to backfire, I take them in to get a diagnostic done on the gas (AU Tickford dual fuel). The EL factory dual fuel i can tuneup and adjust at home.
"Give me any task to do, and I will find something else to do in it's place." Plato - a definition of procrastination
Thanks guys, the thing is I paid to get the gas serviced only 3,000kms ago, shouldn't these things have been changed then? I wouldn't have a clue how to do it :( Hasn't done it since so I will probably just leave it and run it more on petrol. Cheers guys
"If this were a dictatorship, it would be a heck of a lot easier -- just so long as I'm the dictator." -- George W. Bush (December 18, 2000)
In 20 years of running gas cars I still don't know what a gas service is or why people pay for one.As for running it on petrol why did you get a gas car? If you ignore the warning sign of a backfire you could end up blowing apart aircleaner box,air intake tube,pcv valve etc.Cheaper to replace plugs or leads
Backfiring on gas is caused by either defective spark plug leads, and/or defective coil pack. The two are easy to replace, and don't cost an awful lot. You could probably do both for maybe$100., and would take maybe 30 mins to replace, once you have the car jacked up.
Yes, backfiring is detrimental to your car's health, and should be looked to as soon as possible. As for spotting these things at a service, sometimes it is only one lead, and the service chappy needs to put an ohm-meter over all of them. Time consuming and costly. It is probably cheaper to replace the leads, but make sure they are good ones.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.