|
||
|
31st July 2022, 16:04 | #21 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
Posts: 20,378
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
|
Quote:
Your V8's fan (air conditioning off) will not run until the coolant reaches 99˚C. This should happen only when moving slowly or stationary in traffic for a period of time. Regarding joining the trinary switch wires to test the faster fan speed, before posting I checked the V8 wiring diagram and that circuit is identical to the other engines so there is no problem there. However I would recommend that you monitor your actual coolant temperature whilst driving and check that the expansion tank isn't overfilled. Simon
__________________
"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
|
31st July 2022, 18:04 | #22 |
Posted a thing or two
Rover 75 Saloon Join Date: Mar 2014
Location: Louth
Posts: 1,420
Thanks: 380
Thanked 986 Times in 476 Posts
|
I would get this checked by someone who knows and understands how the V8 system works and who has a T4 if you are still not sure how to proceed with this,Please feel free to contact me and I will run a T4 session and check it for you if you ever come up to Lincolnshire as bridging wires on a V8 is not a good idea
Dave |
1st August 2022, 22:09 | #23 |
Loves to post
Connoisseur SE v8 auto '54 Join Date: Jan 2009
Location: West Sussex
Posts: 488
Thanks: 105
Thanked 56 Times in 41 Posts
|
Fan working. Just like that. However, I think a t4 session is in order before I become too excited. Thank you all for your helpful advice and comments.
Last edited by oldie; 1st August 2022 at 22:12.. |
2nd August 2022, 15:28 | #24 |
Premium Trader
75 CDT Tourer,2.5 Launch Saloon, Omipro MG/Rover (T4) Join Date: Jul 2007
Location: Liversedge, West Yorkshire
Posts: 5,405
Thanks: 1,105
Thanked 1,340 Times in 661 Posts
|
From memory as it's been a while since I've had a V8 on T4, that Hevac diagnostics are disabled so a T4 session may tell you very little.
V8 diagnostics especially with the ECM is a bit of a lottery at the best of times too, sometimes they communicate with T4, sometimes they won't Russ
__________________
Replacement Key Service http://https://the75andztclub.co.uk/...d.php?t=244732 Full T4 Testbook diagnostics available. Diesel ECU repair and replacement. Options enabled or disabled as required. Diesel X-Power 135 and 160bhp, Rover 1.8T 150 to 160 MG 160 V6 to 177 upgrades available P.M. for details. |
6th September 2022, 22:01 | #25 |
Loves to post
Connoisseur SE v8 auto '54 Join Date: Jan 2009
Location: West Sussex
Posts: 488
Thanks: 105
Thanked 56 Times in 41 Posts
|
Update. 1000 or so miles in France with some very hot days. Fan cuts in and out as required. Temperature gauge (for what it's worth) steady. Water level seems ok.
|
|
|