typhoon_freak Cryptic Clothing Company Donating Members 4,556 Member For: 16y 11m 4d Gender: Male Location: Brisvages, Capalaba Posted 18/01/09 10:13 AM Share Posted 18/01/09 10:13 AM hey.. only the last couple of days.. my car has started to backfire/spit under load or when I rev it hard out.. usually comes in around 3500rpm-4000rpm and sometimes spit and stuff repeatidly until end of the rev range.. but if I smash the car usuing sequential.. from 1st - 3rd it only appears in the 2nd and 3rd gear? could my coil packs be f*&ked? or is this sumthing more? going to go to my tuner tomorro.. but if I have a rough idea whats the go.. I can load him with Q's Link to comment https://www.fordxr6turbo.com/forum/topic/53611-car-backfiringspitting/ Share on other sites More sharing options...
Xrfranjo Member 350 Member For: 17y 9m 22d Gender: Male Location: Bonnyrigg Heights, NSW Posted 18/01/09 10:18 AM Share Posted 18/01/09 10:18 AM the usual dude,coil packs and plugs. Link to comment https://www.fordxr6turbo.com/forum/topic/53611-car-backfiringspitting/#findComment-805210 Share on other sites More sharing options...
Adam Here since the start... Lifetime Members 10,282 Member For: 22y 1m 19d Gender: Male Location: Victoria Posted 18/01/09 10:31 AM Share Posted 18/01/09 10:31 AM I fixed one today that would not rev past 3500rpm while being driven but it would in park...The problem was that the guts of the cat had come loose and turned sideways in the cat body, virtually blocking the exhaust off. Link to comment https://www.fordxr6turbo.com/forum/topic/53611-car-backfiringspitting/#findComment-805221 Share on other sites More sharing options...
typhoon_freak Cryptic Clothing Company Donating Members 4,556 Member For: 16y 11m 4d Gender: Male Location: Brisvages, Capalaba Posted 18/01/09 10:37 AM Author Share Posted 18/01/09 10:37 AM hmm my cat seems fine.. no rattle noise. but it sometimes runs absolutly fine.. but majority of time its popping Link to comment https://www.fordxr6turbo.com/forum/topic/53611-car-backfiringspitting/#findComment-805226 Share on other sites More sharing options...
mic Donating Members 1,725 Member For: 17y 4m 27d Gender: Male Posted 18/01/09 11:30 AM Share Posted 18/01/09 11:30 AM valve springs ? Link to comment https://www.fordxr6turbo.com/forum/topic/53611-car-backfiringspitting/#findComment-805281 Share on other sites More sharing options...
Adrian6T T.P.I.S. Donating Members 2,578 Member For: 20y 6m 11d Gender: Male Location: SoR, WA Posted 18/01/09 11:33 AM Share Posted 18/01/09 11:33 AM I agree and believe its your cat. It does not have to be noisy to be buggered. Link to comment https://www.fordxr6turbo.com/forum/topic/53611-car-backfiringspitting/#findComment-805284 Share on other sites More sharing options...
typhoon_freak Cryptic Clothing Company Donating Members 4,556 Member For: 16y 11m 4d Gender: Male Location: Brisvages, Capalaba Posted 18/01/09 11:47 AM Author Share Posted 18/01/09 11:47 AM hmm... cat.. I shall pull that off and have a looks... valve springs? they would do that? Link to comment https://www.fordxr6turbo.com/forum/topic/53611-car-backfiringspitting/#findComment-805297 Share on other sites More sharing options...
Locomick AK47's for everybody Donating Members 131 Member For: 19y 3m 6d Gender: Male Location: somewere Posted 18/01/09 12:51 PM Share Posted 18/01/09 12:51 PM backfireing is usely a good sign of runing lean,this is very bad!!!missing undere load and high rpm is a sign of bad coils and or plugs,this not so bad.id be looking at fuel fillter and pump first.mick Link to comment https://www.fordxr6turbo.com/forum/topic/53611-car-backfiringspitting/#findComment-805332 Share on other sites More sharing options...
falconXR6T Member 128 Member For: 22y 1m 30d Posted 19/01/09 05:58 AM Share Posted 19/01/09 05:58 AM Had the same problem one night but the next day like nothing ever happened and ever since its been fine.. weird Link to comment https://www.fordxr6turbo.com/forum/topic/53611-car-backfiringspitting/#findComment-805663 Share on other sites More sharing options...
typhoon_freak Cryptic Clothing Company Donating Members 4,556 Member For: 16y 11m 4d Gender: Male Location: Brisvages, Capalaba Posted 19/01/09 09:25 AM Author Share Posted 19/01/09 09:25 AM I went to my tuner.. and we figured it out that it only happend on full boost.. so we decided to throw in new plugs but went with a colder plug and woh! that sure did the trick!! car is running better then eva now!! thanx for all your thoughts.. Link to comment https://www.fordxr6turbo.com/forum/topic/53611-car-backfiringspitting/#findComment-805857 Share on other sites More sharing options...
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