hey guys. i have vt s pack its on LPG.
Yesterday my car shit itself majorly. It keeps back firing and i have little power. i can only reach 50kms/h. i called RACV and he reckons its some sort of gasket under the rocker cover. Any ideas?
RACV really know nothing. The rocker cover gasket is only there to stop oil leaking out. If that gasket is stuffed all that happens is oil leaks out usually at the rear of the motor or drips onto your exhaust, which then makes your vehicle smell of burnt oil!
There could be a few things wrong, best thing would be to take it to a mechanic to get it checked out. Also does this happen on LPG and Petrol? Or is your vehicle only on LPG?
Does the engine run OK on petrol?
what happens when you hit 50Km/h? does it not go anymore or does it die or .....
|VT Olympic Edition 3.8L Ecotec | VY S Pack Green Interior|
Mods to come | VY Map Reading light/Sunnies Holder|
"Give me a minute, I'm good. Give me an hour, I'm great. Give me six months, I'm unbeatable."
It happens on both gas and petrol and when it hits 50k's it keeps driving but i cant accelerate ast 50kms
a backfire may have split the intake pipe or hit the maf wires ide check for a leak in the pipe first
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
nope no split in the pipes from what i can see. its backfiring straight back into the airbox now constantly and sounds like someone with emphasyma. its ****ed. im cut as. i want my falcon back.
any other suggestions??
Did you change your spark plugs, swapped your spark leads or changed your coil pack recently? Just asking in case you have and the leads arent connected back properly in the correct sequence.
Is the check engine light on? If so read the codes and that might point you in the right direction.
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Originally Posted by Reaper
Check your gas switch isnt faulty.
Sounds like the engines running in limp mode and it sounds electrical.
Its also possible that the ecu is fried.
or it could of blow the wires out the MAF but you would think it would spit codes even check the fuel regulator vacuam hose to make sure no fuel comes out when you prime the fuel pump on key on
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
i found it to be the spark plugs a to hoter plug (BOSCH) made my back firing on LPG put NGK back and fixed
Last edited by kris22; 18-05-2009 at 06:05 PM.
check out your all spark plug & leads
must be leads
this sounds like an injection problem or a spark plug problem, i would double check you have the LPG Version of the spark plugs in, as it might not be firing in the cylinder properly, change the spark plugs to either ACDELCO or NGK or Champion Golds or something. but make sure they are the LPG ones. if not then this problem will happen is this doesnt work i would check your transmission,
|VT Olympic Edition 3.8L Ecotec | VY S Pack Green Interior|
Mods to come | VY Map Reading light/Sunnies Holder|
"Give me a minute, I'm good. Give me an hour, I'm great. Give me six months, I'm unbeatable."
buy ngk iridium plugs 20 bucks each good for gas and petrol. get 100k from ur plugs