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16th May 2022, 20:41 | #11 |
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hi T cut i know this is now quite an old post but i suffer from both of these symptoms. i had posted here a while back about the fact the car had been static for some time. at the time i was told to check the cables in the v leading to the coolant sensor in case any rodents had eaten them. i m yet to achieve this i m hoping i ll be able to in next few weeks as i m battling taking off the inlet manifold with work duties etc however i want to ask can it be coincidental that i also have no revs at the same time? i m hoping the coolant temp staying at cold and the fan kicking in immediately after i start the engine is isolated to the engine revs not showing- i m really hoping it s not ecu as i never found the plenum to have got any water and i do clean the plug hole fairly regularly. do you have any idea other than replacing coolant temp sensor what else i could be faced with and how else to tackle the rev meter issue? i have done instrument cluster check and it all checks out good
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17th May 2022, 07:16 | #12 | |
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Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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Quote:
Normally the gauge reading full cold with the radiator fan running means a problem with the coolant temperature sensor signal reaching the ECU. You're saying that also your rev. counter isn't working even though the engine runs normally? Both the coolant temperature and rev. counter signals are transmitted from the ECM to the instrument pack on the CAN bus. Do you have any other apparently unrelated faults which might confirm this? Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 17th May 2022 at 08:24.. Reason: Updating |
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17th May 2022, 08:49 | #13 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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Late answer to earlier question
Quote:
Simon
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17th May 2022, 17:47 | #14 | |
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Quote:
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17th May 2022, 17:56 | #15 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
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Quote:
Does that help? Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
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