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High idle
Posted: Wed Sep 19, 2018 11:31 pm
by sm57ruo
I am new to the forum, would like some enlightenment on the following;
I have a vw polo 2007 1.4 tdi, when I start the engine the car idles really high, up to about 1500 rpm?
Has anyone had the same problem?
Really need help on this
Thanks in advance
Re: High idle
Posted: Thu Sep 20, 2018 12:24 pm
by littlepolo
Does it settle to a normal idle after warmed up?
Any other problems while driving?
Could be the coolant temp sensor.
Re: High idle
Posted: Thu Sep 20, 2018 2:16 pm
by sm57ruo
No it doesn't settle the idle is still high even when the car is started for a while
Re: High idle
Posted: Fri Sep 21, 2018 4:24 pm
by alexperkins
Clean the throttle body, check the EGR isnt blocked, change the coolant temp sensor
Re: High idle
Posted: Fri Sep 21, 2018 6:06 pm
by littlepolo
Is a throttle body check/clean ever done as part of a dealer service routine?
Re: High idle
Posted: Fri Sep 21, 2018 6:11 pm
by alexperkins
No sadly not
Re: High idle
Posted: Sat Sep 22, 2018 10:00 pm
by sm57ruo
Could be a turbo or something to worry about?
Re: High idle
Posted: Sat Sep 22, 2018 10:03 pm
by alexperkins
Very unlikely to be the turbo. Do what we’ve recommended and go from there
Re: High idle
Posted: Mon Sep 24, 2018 12:50 pm
by sm57ruo
Quick update, haven’t changed anything as of yet, idle seems to come down just under 1000 rpm when driving for a bit
Re: High idle
Posted: Fri Sep 28, 2018 9:05 am
by littlepolo
Just under 1000 is still high. Should be around 680-750 depending on engine type.
Re: High idle
Posted: Sat Oct 06, 2018 7:09 pm
by sm57ruo
1.4 tdi
Re: High idle
Posted: Mon Oct 08, 2018 9:03 pm
by marshall2810
Loose airbox/hose perhaps?
Re: High idle
Posted: Tue Oct 09, 2018 10:23 am
by RUM4MO
Try getting someone to check what the engine coolant temperature is claiming to be - or as suggested, just replace the engine coolant temperature sensor.