Vauxhall Grandland X engine misfires and cooling fan not switching off for about 7-10 minutes. happens every six weeks approx.
Variant: 1.2 turbo
Model Year: 2020
Categories:
Running Rough, Starting & Power Loss
ENGINE LOOSES POWER
When the engine starts to misfire it's always been hot or at least warm and the engine has been switched off a while; say 20 mins to 2 hours on average. The cooling fan seems to run on for too long but does switch off eventually. spark plugs have been changed, spark coils checked and compressions checked. Have just started then stopped a warm engine and the cooling fan comes on for no apparent reason and runs for a while. I am now wondering if the cooling system has a 'dodgy' thermostat and the scan tool is missing this? Could this cause the CPU to misinterpret a message and over-fuel the cylinders, causing the engine to jump about? (or am I just 'clutching at straws')?
When the engine starts to misfire it's always been hot or at least warm and the engine has been switched off a while; say 20 mins to 2 hours on average. The cooling fan seems to run on for too long but does switch off eventually. spark plugs have been changed, spark coils checked and compressions checked. Have just started then stopped a warm engine and the cooling fan comes on for no apparent reason and runs for a while. I am now wondering if the cooling system has a 'dodgy' thermostat and the scan tool is missing this? Could this cause the CPU to misinterpret a message and over-fuel the cylinders, causing the engine to jump about? (or am I just 'clutching at straws')?
Posted: May 23, 2022 (2 years ago)
. Reminds me of the similar symptoms when a diesel engine DPF is regenerating
Posted May 23, 2022 (2 years ago)
Thanks for the reply but I have a petrol engine therefor no DPF involved.
Posted May 24, 2022 (2 years ago)
Replying to post by whittingehame:
. Reminds me of the similar symptoms when a diesel engine DPF is regenerating
Did you get the bottom of this my Grandland X is doing the exact same thing, The garage told me they had fixed it got round the corner same thing happened. Now they are saying they can’t fix it and to take it somewhere else. Refusing to refund me as well!
. Reminds me of the similar symptoms when a diesel engine DPF is regenerating
Posted Apr 2, 2024 (7 months ago)
Replying to post by David Coull:
Thanks for the reply but I have a petrol engine therefor no DPF involved.
Did you get the bottom of this my Grandland X is doing the exact same thing, The garage told me they had fixed it got round the corner same thing happened. Now they are saying they can’t fix it and to take it somewhere else. Refusing to refund me as well!
Thanks for the reply but I have a petrol engine therefor no DPF involved.
Posted Apr 2, 2024 (7 months ago)
Edited on Apr 2, 2024 (7 months ago)
No up[date since posting May 23, 2022 (1 year ago)
Posted Apr 2, 2024 (7 months ago)
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