Strange Noise From Engine area
Submitted: Sunday, Sep 04, 2011 at 21:11
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Member - Wayne B (NSW)
HI all.
Coming
home from
Tamworth the other day there was quite a loud chattering type noise which appeared to be coming from around the engine area on my HJ80 1HDT.
The symptoms were throttling off from high boost. The noise occured only occasionally but was quite loud. As soon as throttle was reapplied the noise stopped. In all it has done it three or four times on random occasions.
My thinking it is the wast
gate chattering ( vibrating ) maybe some carbon caught in the waste
gate. Anyway I was wondering if anyone else has come across this problem.
Any comments appreciated.
Thank you
Wayne B
Reply By: Member - reggy 2 (VIC) - Monday, Sep 05, 2011 at 20:40
Monday, Sep 05, 2011 at 20:40
Hi Wayne
I have been chasing this type of noise for yonks and have not been able to find it
I presume that yours is turbo type motor
Have spoken to a lot of mechanic's but because it only does it intermittently you can't sit anyone on the engine bay to find it
mine seems to do it more when it is cool,when you change down to go through a roundabout.
Sorry this does not answer your question though.
My truck is 2004 turbo 79 series, it does not seem to affect the performance,I have been out to Desert a couple of times it seemed to disappear while there
Cheers Reggy2
AnswerID:
464296
Follow Up By: Member - Wayne B (NSW) - Monday, Sep 05, 2011 at 20:57
Monday, Sep 05, 2011 at 20:57
Reggy.
Intermittent problems are always a pain to find and fix.. This noise only started the other week. We did a trip across the Simpson recently no problems then.
Thinking about temperature ??? If I recall no the occasions it occurred the engine would have reached normal operating temperature maybe traveling for 10 minutes from cold start up but the engine was certainly not hot. There is no change in performance and as soon as you accelerate even slightly, the noise goes
Cheers
Wayne
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738201