erratic tick over

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cliffk
2.0 16v
Posts: 137
Joined: Sun Jan 22, 2012 8:51 pm

erratic tick over

Post by cliffk »

2001 HDI

Occasionally not all the time when I come to a halt at a junction for instance the tick over sounds a bit erratic, the rev counter holds steady but a very slight judder can be felt in the car and at night the headlights flicker a little bit.

It doesnt happen every time and sometimes it is worse than others, when driving the car pulls well and doesnt falter.

Any ideas?
PeterN
3.0 24v
Posts: 1673
Joined: Sun Mar 04, 2012 6:04 pm
Location: Charmouth, Dorset

Re: erratic tick over

Post by PeterN »

Could be the alternator cutting in and out which would alter the load on the engine. Connect a meter across the battery when its doing it and check the voltage, it should read a steady 14.4 volts or thereabout with the engine running. If not check that the belt isn't slipping. Could be the alternator brushes or regulator faulty.

Peter
cliffk
2.0 16v
Posts: 137
Joined: Sun Jan 22, 2012 8:51 pm

Re: erratic tick over

Post by cliffk »

thanks Peter Ill check that
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