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Misfire after engine degrease and pressure wash
#1
Posted 27 September 2007 - 11:27 AM
Hi everyone,
I degreased and pressure washed my engine bay the other day with the thought of making everything look nice and shiney! It did make a difference and the engine bay looks great but i had a pretty bad misfire afterwards.
Be carefull when and if you do it,
There wasn't any water in the dizzy but the rear two spark plugs were swimming. The design of the engine isn't too good in this regard so just be carefull when pressure washing the engine bay.
Brenton down at Fours and More fixed me up no problems and now i've got no problems. :thanku:
Hopefully this helps someone,
Nick
I degreased and pressure washed my engine bay the other day with the thought of making everything look nice and shiney! It did make a difference and the engine bay looks great but i had a pretty bad misfire afterwards.
Be carefull when and if you do it,
There wasn't any water in the dizzy but the rear two spark plugs were swimming. The design of the engine isn't too good in this regard so just be carefull when pressure washing the engine bay.
Brenton down at Fours and More fixed me up no problems and now i've got no problems. :thanku:
Hopefully this helps someone,
Nick
#2
Posted 27 September 2007 - 11:30 AM
mmm my engine bay has always been purty since i bought it :) i just use a slightly wet chamois every now and then :)
#3
Posted 27 September 2007 - 11:31 AM
That seems to be more of an issue for the NA engine for some reason, possibly because the TT engine uses coil packs?. Good reminder though for the rest of you, if your going to pressure wash your motor you need to be extra careful around the top of the motor.
Cheers
Darren
Cheers
Darren
#4
Posted 27 September 2007 - 12:38 PM
If teh car can run for a while it will solve itself as water will evaporate.
If it wont' then pop off all your ignition bits and dry them out eg. this happened quite graphically to a customer car years ago when I was working for Mobil - the poor old dear came late in the day to collect teh car but refused to leave with it popping and hissing in case she got stranded.
Had to get the boss out to fix it - he just popped the distributor cap off, dried it out, good as gold.
Usually it's just water most likely, check connections while ur there too people, "while your down there" (hehe)
later,
GEE
PS - next time use a shopping bag to protect these bits eg. diz, alternator, air filter etc.
PPS- shopping bags dont' tend to help with spark galleries so I always just pop the engine cover and fill galleries with soft rags to soak up water and then bag them after that.
If it wont' then pop off all your ignition bits and dry them out eg. this happened quite graphically to a customer car years ago when I was working for Mobil - the poor old dear came late in the day to collect teh car but refused to leave with it popping and hissing in case she got stranded.
Had to get the boss out to fix it - he just popped the distributor cap off, dried it out, good as gold.
Usually it's just water most likely, check connections while ur there too people, "while your down there" (hehe)
later,
GEE
PS - next time use a shopping bag to protect these bits eg. diz, alternator, air filter etc.
PPS- shopping bags dont' tend to help with spark galleries so I always just pop the engine cover and fill galleries with soft rags to soak up water and then bag them after that.
#5
Posted 27 September 2007 - 10:16 PM
yeah i had this problem, its a bitch with an NA, but gave me an excuse to change the plugs, leads and clean out the throttle body. recommend just washing it down with a old cloth or something, works just as well.
#6
Posted 28 September 2007 - 12:52 AM
Hey, I'd say you've dropped a piston, if you've noticed a big increase in the amount of fuel your car uses and the richness of the exhaust fumes. i'd say that from the high pressure hosing of the engine bay, water has leaked into one to the spark plug holes and then causing it to fire incorrectly. Using a high pressure hose on your engine bay is like washing your tv with water.
I'd use a rag to try get all the water out of the head or leave your engine bay open on a hot day to try evaporate the water out quicker.
-Good Luck :thumbsup:
Kwan
I'd use a rag to try get all the water out of the head or leave your engine bay open on a hot day to try evaporate the water out quicker.
-Good Luck :thumbsup:
Kwan
#7
Posted 28 September 2007 - 11:04 AM
I Have degreased and high pressure washed my engine bay many many times and with no trouble...
Make sure your car is COLD before you degrease/wash
Cover up pod filter if not enclosed
Try to keep direct spray away from electrical regions and fuses
Let car idle for 10 minutes, drive car for 10 minutes
Never had any misfire AT ALL.
Go the TT's, not soft little NA's
Make sure your car is COLD before you degrease/wash
Cover up pod filter if not enclosed
Try to keep direct spray away from electrical regions and fuses
Let car idle for 10 minutes, drive car for 10 minutes
Never had any misfire AT ALL.
Go the TT's, not soft little NA's
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