| Growling sound Question :
Last week, I serviced my
Waja 1.6 manual (year 2001).
The timing belt and two other belts (I can't recall their names) were
changed. The mechanic, then washed the engine to clear it of dirt by
covering the air filter with a plastic bag. He later removed the air filter
pipe from the point where' it was attached to a metal unit above the fuel
injection section. He sprayed a carbon remover into the hole a few times and
used tissue paper to remove sticky carbon. He said this would cause air to
flow in better and save fuel.
The next morning, I was shocked to hear a growling sound, like a sports
exhaust, from the engine. The steering wheel, dashboard, inner part of the
door and the driver seat were vibrating. It gets louder when I am in first
gear but after an hour of driving, the growling subsides. It recurs when I
start the engine to go home after work. The next day, the mechanic checked
it out and had the engine oil changed. However, the problem persists.
Answer : I am not sure that your problem has anything to do with
the fuel injection or intake system. Maybe, one of the ignition cables to a
spark-plug is shorting to earth and so the engine is firing on three
cylinders but after a while when the engine warms up, that cylinder starts
to fire occasionally and the engine appears to be running okay. I would
check all the HT cables and the spark plug caps. Since the engine
compartment was washed, there may be water condensation inside one of the
caps, causing this misfire. While you are at it, also remove the distributor
cap and check for water condensation there. |
