Renault Forums :: Independent Renault forum - View Single Post - Renault Laguna II - Phase 1 - Electronics - Drying Plugs / Coils after possible water ingress

View Single Post
post #2 of (permalink) Old 8th February 2006
Veteran Member
Technical Supremo
Lagdti's Avatar
Join Date: Dec 2005
Posts: 40,429
Nominated 2 Times in 20 Posts
Nominated TOTW/F/M Award(s): 18
Thanks: 149
Thanked 1,103 Times in 942 Posts
Hello and welcome to the forum.
I suspect you have managed to get water down into the spark plug wells.The best way to clean the out is to remove the plug leads(or individual coils ) and blow the water out with a compressed air blower(if you haven't got access to a compressor then take it to a local garage).If doing it yourself wear goggles and a coat!.Once all the water is out,spray WD40 or similar around the plugs and leads to drive out anymore moisture which could be trapped.Don't attempt to remove the spark plugs with the water still around them as this will allow the water to enter the cylinder,which is not good!.
It really isn't a good idea to wash under the bonnet anymore as serious damage to electrical components can result.By all means wipe round the engine bay and covers with a dry rag,but avoid washing it,especially with a pressure washer,as used to be common.
Also,if you think that your car is misfiring then avoid driving it too far as the fuel that doesn't get burnt in the engine goes into the catalytic converter in the exhaust system which can seriously damage it.
Currently in Lagdti's garage:
2004 Saab 9-5 HOT Aero and a 2001 Audi A3 1.8 Turbo
Lagdti is offline  
For the best viewing experience please update your browser to Google Chrome