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04-22-2019, 05:18 AM | #1 |
Drives: Toyota Yaris - 2000 reg Join Date: Apr 2019
Location: Dublin
Posts: 9
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Timing Chain Question
Hi there,
New member here, proudly driving the Toyota Yaris for 19 years. It has 154,000 miles on the clock and generally runs smooth as glass, but over the last couple of months it's getting a little louder - not hugely - especially when it's idling, or just started. Yesterday it was idling while I put some coins in a parking meter and the noise became so loud from it, I thought it was the air conditioning in the shop it was parked beside. I turned off the engine, and when I turned it back on, the loud noise was gone, and hasn't returned. Does this sound like prep for a timing chain snap? Or if not, are there warning sounds before a timing chain dies? Is 150k miles a lot for a timing chain? Many thanks in advance if you can help, I don't wanna lose old Bonnie Blue! |
04-22-2019, 05:49 AM | #2 |
Drives: 2015Yaris, Son's car, 10 Prius Join Date: May 2010
Location: Texas
Posts: 181
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Another thought is that your oil pump may be failing. Engines will get loud with low oil.
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04-22-2019, 07:20 AM | #3 |
Drives: 2010 yaris 3 door hatch Join Date: Jun 2013
Location: Sheboygan Falls, Wi.
Posts: 506
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When it's making the noise, remove the drive belts and restart.
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04-22-2019, 11:08 AM | #4 |
Drives: Toyota Yaris - 2000 reg Join Date: Apr 2019
Location: Dublin
Posts: 9
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04-22-2019, 11:10 AM | #5 | |
Drives: Toyota Yaris - 2000 reg Join Date: Apr 2019
Location: Dublin
Posts: 9
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Quote:
Thanks very much for the reply! |
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04-22-2019, 11:56 AM | #6 |
Drives: Yaris 06 - 5dr hatchback Join Date: Aug 2015
Location: Birmingham, UK
Posts: 390
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There is a possibility you have some partially clogged oiling passages in the engine and something isn't getting enough oil at low pressure from idling. I had a problem with my engine sounding loud and the occasional rattle from my timing chain (tensioner or the VVT) and what sounded like a very noisy lifter at idle every now and again. I ran some flush through my engine before an oil change and it hasn't done it for 10,000 miles. I guess some crud might have been blocking something after 160,000 miles/12 years.
Flush. Especially in older engines is really kill or cure though. I could just have easily have wrecked my engine and had to get a new one from the scrap yard. Toyota timing chains are very very durable. I've only heard of a handful of cases of one going bad. Sent from my SM-G965F using Tapatalk
__________________
- Yaris 2006, 1.0, 5 door hatchback "Betty" - 240,000 miles UK to Nordkapp in a Yaris
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04-23-2019, 04:09 PM | #7 | |
Drives: Toyota Yaris - 2000 reg Join Date: Apr 2019
Location: Dublin
Posts: 9
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Quote:
Very grateful for all the help by posters! |
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04-23-2019, 06:29 PM | #8 | |
It's the illusion you see
Drives: 07 Yaris Sedan Aero Join Date: Oct 2006
Location: Brossard, QC
Posts: 3,888
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Quote:
Sent from my CLT-L04 using Tapatalk |
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