Yaris, starting from cold.

Honest John Back Room » Technical matters
What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks
View Threaded
Sat 17 Apr 2004 11:19
Yaris, starting from cold. - Eric355
Hi,
When starting my '53 yaris 1.3 for the first time in the morning,the engine seems to rev too high for the first few seconds, giving a rough sound. After that it starts ok, is this normal?. Thanks for any advice.
Reply | Report as offensive | Link
Sun 18 Apr 2004 12:09
Yaris, starting from cold. - mark999
Hi,
The same happens with my 1.0 Yaris especially in winter. The rough sound is oil starvation to the top end. I found that changing the oil to the a 5w-40 as reccomended in the hand book (dealer used 10w-40) helped. Also change the oil at least twice a year and give the engine plenty of Italian tune ups.
Reply | Report as offensive | Link
Sun 18 Apr 2004 15:48
Yaris, starting from cold. - smokie
Are you sure you have a filter with a non-return valve, this would restrict the oil flowing back down again while the engine isn't turning.

Or so I understand!
Reply | Report as offensive | Link
Sun 18 Apr 2004 22:36
Yaris, starting from cold. - Eric355
As the car is only three months old, I presume it has the correct oil and filter fitted. Should I change them anyway to be sure. If I do, how will this affect the running-in process?.
Reply | Report as offensive | Link
Sun 18 Apr 2004 22:55
Yaris, starting from cold. - henry k
Hi,
When starting my '53 yaris 1.3 for the
first time in the morning,the engine seems to rev too high
for the first few seconds, giving a rough sound. After that
it starts ok, is this normal?. Thanks for any advice.

>>
IRC a recent thread (Re Focus?) stated that modern engines when first started do rev higher for the first few seconds due to low emissions requirements.
Certainly this occurs with sons petrol Focus and I seem to recall the same on daughters 1.3 2000 Yaris.

Reply | Report as offensive | Link
Sun 18 Apr 2004 23:27
Yaris, starting from cold. - Eric355
Henry,
Does the Focus or the Yaris sound as if they are starved of oil in those first few seconds?.
Reply | Report as offensive | Link
Mon 19 Apr 2004 00:18
Yaris, starting from cold. - Civic8
Unless things have changed you will get this on first startup.
being engine is cold it will overfuel untill engine has warmed up.depending on engine could be a few seconds to several minutes.oil flow would also depend on engine oil pump I would assume it has hydraulic tappets.if so it can take several seconds for the oil to reach the tappets giving the effects you mention
Reply | Report as offensive | Link
Mon 19 Apr 2004 18:27
Yaris, starting from cold. - Eric355
Spoke to Toyota today and they confirmed that the engine does rev quite high for the first few seconds on cold start up, this reduces the chance of any unburnt fuel being emitted from the exhaust and assists the catalytic converter to reach optimum temperature, but cannot diagnose the noise without further investigation.
Reply | Report as offensive | Link
Mon 19 Apr 2004 23:02
Yaris, starting from cold. - henry k
eric355
I cannot get access to the Yaris, 60K on the clock, for 5 weeks. I have no idea what oil is it without asking the non Toyota dealer I bought it from. (They did an oil change as part of the PDI.) I will try to update you when I get my hands on the keys.

I will try to start up the Focus in the next day or two.
Reply | Report as offensive | Link
Mon 19 Apr 2004 23:05
Yaris, starting from cold. - henry k
eric355
P.S. see my update in "Toyota Warranty - reasonable."
Reply | Report as offensive | Link
Tue 20 Apr 2004 13:50
Yaris, starting from cold. - Eric355
Henry,
On starting my sons Citroen Saxo ( 52 reg, ) from cold, it goes to about 1300 revs and sounds good, no indication of roughness or oil starvation.I feel that the Yaris is going "ouch!" when it starts from cold. I have no doubt Mr Toyota will sort it if it does have a fault, afterall he has a reputation to keep up.
Reply | Report as offensive | Link