Question about 1995 Mercury Sable
Ticking/whirring noise starts and stops at 30km/h. It goes faster when I do but does not slow down to a stop, it abruptly stops at 30km/h.
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Posted on Jan 02, 2017
Loose tappets normally. They sit in the cylinder head on the rockers between the camshaft push-rods and the valves and are adjusted to bring the gap between the rocker and the valve to the manufacturers spec. Too much gap and the valves do not open properly, restricting fuel intake / exhaust gas purging. Too little gap and the valves will not close properly and can burn out. Mechanical tappets can be adjusted, hydraulic ones are eventually changed if the tapping gets too bad. There is a third type called bucket and shim but quite rare these days an the adjustment is complicated. Less likely is a sticking valve; a condition where, for a number of reasons, a valve does not close properly leaving a big gap between the rocker and the valve with consequent ticking and normally a loss of power.
Posted on Apr 03, 2009
It wont rev past 3500 in driving?
The governer on these is set to NOT allow a higher rev when car is stopped and not in gear.
Try to change oil viscosity or filter manufacturer.Some filter manufactures put in a bypass valve that kicks in too early.
Posted on Aug 04, 2009
You have a bad starter if all your connections are good and your battery is measuring 12.7 volts and above with engine off.
Posted on Jan 17, 2010
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