Engine shudders after water wash

mhawk.madhan · 17th October 2010, 17:00

Hi Folks,
Our Hyundai Verna Petrol (2007) had a water wash 2 days back, hope the service center people didn't use water to clean the engine bay. After the water wash my engine started to shudder at lower rpm's, I could able to feel the vibration from the driver's seat, with a big thud-thud noise coming from engine and the noise and vibration subsidize's at higher rpm's. The problem is more while in 1st gear or trying to revers. I could also smell petrol from my exhaust and the exhaust is also not continuous. I am planning to visit A.S.S tomorrow, before which I would like to hear from you folks, as I am pretty sure the water wash was the culprit, before which the vehcle was running in top condition.

Ricky_63 · 17th October 2010, 17:24

A cold engine would tend to shudder a vee bit, but if it shuddering even after let's say 2 minutes of idle, then certainly water has entered either the air intake or a fuel line, spark plug lead. A loose plug lead would also cause it to miss...hence the smell of petrol from the tailpipe.

Does the temp needle indicate operating temp as normal (near half mark) ?? It may be wise to take it to the workshop if the shuddering continues after a couple of minutes.

Cheers

Rehaan · 17th October 2010, 17:48

What you outline sounds like water has got into one of the spark plug holes.

Remove the lead / wire.

Spray compressed air into each of the 4 holes one by one so as to push out / evaporate any wetness. 30+ sec each hole.

Spray the inside (connector) of the spark plug leads as well - ie the part that makes contact with the spark plug itself.

This can be done at any petrol pump that has a proper compressed air spray / nozzle.

I think this should fix it.
cya
R

EDIT: See similar thread : http://www.team-bhp.com/forum/techni...iring-ohc.html

ghpk · 17th October 2010, 19:16

Had similar thing happened to my santro after excessive wash, and was solved by the method Rehaan suggested.

however once that shudder effect was solved only after replacing the wire for plug No:4

SirAlec · 18th October 2010, 00:07

Open and dry the air filter.

PAVAN KADAM · 18th October 2010, 00:12

Water wash to the engine bay is dangerous.

What you should do is:

1) Get the sparkplugs and plug leads cleaned of water content- Blow dry air

2) Open all your spark plugs, crank the engine for over 10 seconds.

3) Clean your Air filter.

But, Get all this done at the A.S.C if the car is under extended warranty.

mb_jg · 18th October 2010, 11:58

mhawk, I had a similar problem with my car after a wash, similar symptoms. There is a small rubber pipe that feeds the air fuel mixture to the engine (which was cracked, in my case). It was a 10sec job, literally & cost Rs.5 which my mechanic did not charge :o)

mb_jg · 21st October 2010, 17:16

Mhawk, any luck with solving the issue?

mhawk.madhan · 21st October 2010, 20:29

Quote:

Originally Posted by mb_jg

Mhawk, any luck with solving the issue?

Rehaan's tip worked like a champ, explained the issue to my dad and he was able to fix it with a local mechanic's help. Thank you all folks for your valuable inputs, regret for the delay in replying.

ghpk · 26th October 2010, 03:41

My thanks to Rehaan too, he made me remember my last problem and action, I was able to solve the shudders of low RPM, by removing, cleaning and re-placing the plug wire.

I think i drove with this problem for a week, and now my car is running very very smooth.

17th October 2010, 17:00	#1
mhawk.madhan Newbie Join Date: Jun 2010 Location: Chennai Posts: 8 Thanked: 0 Times	Engine shudders after water wash Hi Folks, Our Hyundai Verna Petrol (2007) had a water wash 2 days back, hope the service center people didn't use water to clean the engine bay. After the water wash my engine started to shudder at lower rpm's, I could able to feel the vibration from the driver's seat, with a big thud-thud noise coming from engine and the noise and vibration subsidize's at higher rpm's. The problem is more while in 1st gear or trying to revers. I could also smell petrol from my exhaust and the exhaust is also not continuous. I am planning to visit A.S.S tomorrow, before which I would like to hear from you folks, as I am pretty sure the water wash was the culprit, before which the vehcle was running in top condition.
	() Thanks

17th October 2010, 17:24	#2
Ricky_63 Senior - BHPian Join Date: Dec 2006 Location: Gurgaon Posts: 3,880 Thanked: 519 Times View My Garage	A cold engine would tend to shudder a vee bit, but if it shuddering even after let's say 2 minutes of idle, then certainly water has entered either the air intake or a fuel line, spark plug lead. A loose plug lead would also cause it to miss...hence the smell of petrol from the tailpipe. Does the temp needle indicate operating temp as normal (near half mark) ?? It may be wise to take it to the workshop if the shuddering continues after a couple of minutes. Cheers
	() Thanks

17th October 2010, 17:48	#3
Rehaan Team-BHP Support Join Date: Feb 2004 Location: Bombay Posts: 24,193 Thanked: 36,060 Times	What you outline sounds like water has got into one of the spark plug holes. Remove the lead / wire. Spray compressed air into each of the 4 holes one by one so as to push out / evaporate any wetness. 30+ sec each hole. Spray the inside (connector) of the spark plug leads as well - ie the part that makes contact with the spark plug itself. This can be done at any petrol pump that has a proper compressed air spray / nozzle. I think this should fix it. cya R EDIT: See similar thread : http://www.team-bhp.com/forum/techni...iring-ohc.html Last edited by Rehaan : 17th October 2010 at 17:49.
	(1) Thanks

17th October 2010, 19:16	#4
ghpk BHPian Join Date: Mar 2009 Location: Ghaziabad Posts: 872 Thanked: 212 Times	Had similar thing happened to my santro after excessive wash, and was solved by the method Rehaan suggested. however once that shudder effect was solved only after replacing the wire for plug No:4
	() Thanks

18th October 2010, 00:07	#5
SirAlec Senior - BHPian Join Date: Sep 2006 Location: zxc Posts: 3,395 Thanked: 727 Times	Open and dry the air filter.
	() Thanks

18th October 2010, 00:12	#6
PAVAN KADAM BANNED Join Date: Jan 2007 Location: NAMMA BENGALURU Posts: 5,601 Thanked: 2,557 Times	Water wash to the engine bay is dangerous. What you should do is: 1) Get the sparkplugs and plug leads cleaned of water content- Blow dry air 2) Open all your spark plugs, crank the engine for over 10 seconds. 3) Clean your Air filter. But, Get all this done at the A.S.C if the car is under extended warranty.
	() Thanks

18th October 2010, 11:58	#7
mb_jg BHPian Join Date: Feb 2006 Location: Pune Posts: 484 Thanked: 126 Times	mhawk, I had a similar problem with my car after a wash, similar symptoms. There is a small rubber pipe that feeds the air fuel mixture to the engine (which was cracked, in my case). It was a 10sec job, literally & cost Rs.5 which my mechanic did not charge :o)
	() Thanks

21st October 2010, 17:16	#8
mb_jg BHPian Join Date: Feb 2006 Location: Pune Posts: 484 Thanked: 126 Times	Mhawk, any luck with solving the issue?
	() Thanks

26th October 2010, 03:41	#10
ghpk BHPian Join Date: Mar 2009 Location: Ghaziabad Posts: 872 Thanked: 212 Times	My thanks to Rehaan too, he made me remember my last problem and action, I was able to solve the shudders of low RPM, by removing, cleaning and re-placing the plug wire. I think i drove with this problem for a week, and now my car is running very very smooth.
	() Thanks