SPONSORED LINKS

Loud tick/rattle from engine bay when starting from cold and under 2000 revs

Tiny
TIMWISER
  • MEMBER
  • 2007 VAUXHALL ASTRA
  • 1.7L
  • TURBO
  • 2WD
  • MANUAL
  • 70,000 MILES
Hi,

This noise has started on our diesel Astra since the weather got cold. The ignition is started and it begins pretty much straight away. If the engine is revved a little, taking it past 1800/2000 revs, the noise goes away until the revs drop down again. After a few mins of driving, the noise goes away. If the engine is warm, the noise doesn't occur.

There's no lights on the dashboard indicating any fault.

I've recorded the noise and put it on my OneDrive account. You can hear it at http://1drv.ms/1yZGAKs
SPONSORED LINKS
Monday, February 9th, 2015 AT 1:47 AM

1 Reply

Tiny
DR LOOT
  • MECHANIC
  • 2,311 POSTS
First of all reving a diesel when its cold is not recommended, it sounds like because the weather's getting cold you may have a weak battery causing the alternator to overwork to charge it back up and the belt is loose on the alternator. Once the battery is charged up the noise goes away
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, February 11th, 2015 AT 8:12 AM

Please login or register to post a reply.

Related Engine Revs Up Content

Idle Air Control Motor Replacement
GUIDE
Idle Air Control Motor Replacement
The idle air control motor or idle speed control motor is designed to adjust the air flow into the intake manifold at engine idle. Engine idle speed is monitored by the PCM...
VIEW MORE

Sponsored links