Car started running rough or rich when idling and also had a ticking noise. My husband replaced 2 coil packs, all the spark plugs and 2 sensors on the manifold but still not fixed. Took to have diagnostic done but when mechanic heard the ticking or knocking sound he thought it might be a rod in the engine and we would need a new engine. Considering they were just going off the noise, is it possible it could be something else?
Ticking usually valve train lifter,push rod or rockers --knocking [ rod knock ] usually bad piston connecting rod --or engine ear down yes a good mechanic can advise from certain noises but will test for exact problem
Hey Kimberly... First... is the noise a high pitched ticking or a lower pitched knocking or clunking?? ...this is IMPORTANT>>
Reply to me on here..please...
SOURCE: Idling with bad mpg and
You do not switch coils
If you have a bad coil, you have to
find out which one & replace it
Am I missing something here?
You replace the spark plugs (all of them)
every 70,000 miles. You use the OEM
NGK proper plug
You clean the MAF Sensor
Replace front 2 O2 Sensors only
at 100,000 miles
You could have EGR issues,vacuum leaks
from any number of places,as well as
EVAP System issues,even without codes
You really need to look at the data with
a professional scan tool,smoke the EVAP
and intake,check fuel pressure
Basically make love to it for a couple of days
Your problem is that not many people like
to work on the LS or most Fords
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