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High Revs When Cold


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#1 jsg

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Posted 14 November 2008 - 07:16 PM

I have high (2,000) revs when starting from cold in my 2003 petrol verso. This is a recent development and my local Toyota garage says not a problem! I disagree. Have changed air filter and checked sensor in air filter feed pipe (it's hell without manuals isn't it!). When warm, no problems but when cold the revs can fluctuate by as much as 2-300 revs (going from say 1,500 - 1,800) when stopped at traffic lights shortly after cold start. Any ideas? The car has 35,000 on clock and owned by us from new.

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#2 bumley

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Posted 14 November 2008 - 08:25 PM

That sounds ok, in the recent cold weather mine is the same, as soon as the temp rises to the first marker on the gauge its then ok. I wouldn't worry if the revs are stable when its warm.

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#3 AvensisMolester

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Posted 30 November 2008 - 12:31 AM

Relax! Everthing is fine, every Avensis and indeed most cars do this. The choke automatically comes on on every car engine after starting from cold for a period until the engine's brain (ecu) decides it's at the correct temperature to turn off, at which point i'd bet any money your revs level off to around 700-900 rpm. And the explanation for your car fluctuating while stopped at traffic lights is your car is beginning to get warm because the engine isn't being cooled by air passing through the engine as is what happens whilst moving. So your fan on your radiator kicks in to blow cool air on the engine. However, this fan doesn't run on thin air, it needs electricity which will be generated by your engine. But this naturally puts a healthy load on your engine. Similarly you would notice the same happening when you turn on your full headlights with your engine running, this does the same doesn't it? It's perfectly natural for your car to do this and i wouldn't worry about it in the least bit.

#4 Beagh1958

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Posted 01 December 2008 - 09:05 PM

From cold 2000 RPM sounds wrong to me, way to high plus fluctuating. D4D 2 ltr from cold for example will rise to 1200 RPM if heater switched on before car fully warmed. If you did not have this raised idle speed (plus fluctuating high idle ) from new, sounds odd to me.

#5 Q.S.

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Posted 01 December 2008 - 09:24 PM

From cold 2000 RPM sounds wrong to me, way to high plus fluctuating. D4D 2 ltr from cold for example will rise to 1200 RPM if heater switched on before car fully warmed. If you did not have this raised idle speed (plus fluctuating high idle ) from new, sounds odd to me.


I agree with Beagh. Although it is normal for the revs to increase when cold, 2000 rpm is way too high. For example, my 1.8vvti, this morning at 4.40am at -2 c, engine revs were at 1400. When fully warmed up, temp gauge smack bang in the centre, idle drops back to 750rpm when stationary. Possibly an air leak in the induction system?
Maybe others can post figures for theirs.
P.S. Mine is a 2002.

#6 carinfront

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Posted 01 December 2008 - 10:49 PM

Sounds OK to me.
I have a 2003 petrol 1.8.
Mine is around 1800revs or so on a cold morning. Done it since I had it in 2005. The jumping up and down when stopping at lights during the first few minutes happens due to the extra electrical load as described by AvensisMolester. I also leave it to warm up a bit too before driving off. Turning off the heating during the warm up period makes it warm up a touch faster too.
Settles down nicely once warmed up to the 800 mark I think.
I've had this on all my cars, not just Toyota...
Cheers
Mike

#7 igormus

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Posted 02 December 2008 - 07:56 AM

I have high (2,000) revs when starting from cold in my 2003 petrol verso. This is a recent development and my local Toyota garage says not a problem! I disagree. Have changed air filter and checked sensor in air filter feed pipe (it's hell without manuals isn't it!). When warm, no problems but when cold the revs can fluctuate by as much as 2-300 revs (going from say 1,500 - 1,800) when stopped at traffic lights shortly after cold start. Any ideas? The car has 35,000 on clock and owned by us from new.


hello
No worries
Mine gives 1800-1900 rpm at cold starting.
cheers/Igor

#8 windy1

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Posted 06 December 2008 - 11:20 AM

My 2005 54 plate 1.8 petrol also revs 1800 ish when very cold. Soon settles to 7-800 when warm . Give Toyota engineers some credit for allowing warm air from those face level vents after only a couple of minutes starting from -3deg C.

#9 icon225

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Posted 06 December 2008 - 12:24 PM

my y plate (2001) 1.8petrol on a cold start goes to about 1800-2000rpm then will rest at between 800-900.

#10 SF695

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Posted 08 December 2008 - 07:48 PM

2000 rpm when cold sounds perfectly normal. Especially in cold weather.

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