boost69 Donating Members 737 Member For: 18y 11m Posted 20/05/16 02:42 AM Share Posted 20/05/16 02:42 AM Guys, My FG seems like its lost some punch... was wondering whether the spark plugs could be causing this drop in performance. The car has done around 126,000KMS and the plugs have never been changed...could the plugs be causing this lack of acceleration urgency? I always assumed worn plugs would missfire etc... I also have read that with new cars the voltage can be increased to accommodate a worn out spark plug... I have ordered genuine ones from Ford, but they seem to be scarce at the moment and no Ford dealers currently stock them. (they're on back order) Is there anything else that would cause a gradual decline in performance? Link to comment Share on other sites More sharing options...
My_XR6_Turbo Member 282 Member For: 19y 8m 17d Posted 20/05/16 02:52 AM Share Posted 20/05/16 02:52 AM Maybe try cleaning the boost solenoid? Coil packs? Air filter dirty? Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,291 Member For: 16y 9d Gender: Male Location: Melbourne Posted 20/05/16 03:01 AM Share Posted 20/05/16 03:01 AM spark plugs could definitely do that if you haven't changed them in 120,000km... Plenty of other things could cause a gradual decrease in performance. As above, the easy things to check are air filter, fuel filter, boost control solenoid, rust on coil packs, dirty throttle body, collapsed cat etc Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 18y 6m 27d Gender: Male Location: Perth Posted 20/05/16 03:05 AM Share Posted 20/05/16 03:05 AM Floor mat stuck under the gas pedal? 1 Link to comment Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 16y 4m 26d Gender: Male Location: Probably above atmospheric pressure Posted 20/05/16 09:29 AM Share Posted 20/05/16 09:29 AM Use SK20R7 plugs, no problems with stock levels... Just need a custom tune to suit the 7mm gap 1 Link to comment Share on other sites More sharing options...
masda74 To Loud Gold Donating Members 4,112 Member For: 12y 4m 20d Gender: Male Location: WA, Perth Posted 21/05/16 01:15 PM Share Posted 21/05/16 01:15 PM Check the bolts on your turbo. Loose bolt normally means cracked turbo........ 1 Link to comment Share on other sites More sharing options...
FiftyOne Bronze Donating Members 1,145 Member For: 10y 9m 18d Gender: Male Posted 21/05/16 01:20 PM Share Posted 21/05/16 01:20 PM ^ This guy knows. So do I. Link to comment Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 16y 4m 26d Gender: Male Location: Probably above atmospheric pressure Posted 21/05/16 01:32 PM Share Posted 21/05/16 01:32 PM It's what I was told as well about mine. Link to comment Share on other sites More sharing options...
skidxr6t skids Donating Members 2,754 Member For: 11y 3m 22d Gender: Not Telling Posted 22/05/16 01:13 AM Share Posted 22/05/16 01:13 AM (edited) I believe I had a cracked exhaust housing on my BA. I reckon it was cause I'd rip skids and sh*t as a stupid P plater then stop the engine moments later so the thing really didn't get a chance to warm up and cool down. I remember how well it ran after I had XFT tighten all of the bolts....by the time I got home it ran like a dog again. Yeah I did tighten the bolts immediately before selling it but a car dealer bought it so f*ck him. On my BF I was missing a stud and nut to the dump pipe which the mechanic replaced and everything is holding up leak free for about 1000ks so far. Definitely start with the plugs but maybe if it still isn't perfect you could do the boost solenoid maintenance (search it on this forum), then if it's still not right I'd pull the turbo heat shields off and check the bolts. I had my mechanic check the turbo bolts for me when I got my BF because I'm lazy but in future I'll do it myself. Edited 22/05/16 01:18 AM by johnxr6t Link to comment Share on other sites More sharing options...
FiftyOne Bronze Donating Members 1,145 Member For: 10y 9m 18d Gender: Male Posted 22/05/16 02:07 AM Share Posted 22/05/16 02:07 AM #turbolyfe 1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now