Bonjourno, Tam Owner
Discussion
Hi Guys. Ive owned my Tam for nearly a year and a half but have finally got round to joining the forums!
Shes a standard 3.6 with a few tinkers done. Loved every minute of owning it (even the 2k clutch replacement and two MOT failures!) but I am having a few (read many) issues.
She seems to run very hot especially in stop/start traffic (regularly reaching 100+) Coolant level seems ok but I need to do more investigating. Would you recommend changing the coolant as I have no idea when it was last done and if its all gunged up, I figured it couldn't hurt as a starting point. Also going to change the oil and filter when I'm back next as I get seemingly random oil pressure warnings and again it cant hurt to change her blood. Has any got any advice or tips, or could point me to a post explaining how to do the two?
Ill see if I can get a picture of her up later.
Cheers for now
Nobby
Shes a standard 3.6 with a few tinkers done. Loved every minute of owning it (even the 2k clutch replacement and two MOT failures!) but I am having a few (read many) issues.
She seems to run very hot especially in stop/start traffic (regularly reaching 100+) Coolant level seems ok but I need to do more investigating. Would you recommend changing the coolant as I have no idea when it was last done and if its all gunged up, I figured it couldn't hurt as a starting point. Also going to change the oil and filter when I'm back next as I get seemingly random oil pressure warnings and again it cant hurt to change her blood. Has any got any advice or tips, or could point me to a post explaining how to do the two?
Ill see if I can get a picture of her up later.
Cheers for now
Nobby
What you need to do is let the engine get hot and open the bonnet keep any eye on the read out on the dash and see what temperature it is reading when the fans kick in , they should kick in about 92 if the dash is reading 100c when they kick in it is the dash reading 5-8 degrees to high, it could be the dash ECU just needs a clean or the water sensor is knackered, try cleaning the dash ECU its in the foot well I have the same issue with my T350, I had the sensor changed as it was looking a bit tired and the read out is still showing 100 so I will get the ecu cleaned
I had all sorts of wacky readings on my Tam. Solved by tightening the earth bolt in the passenger footwel, to the right of the fuse.
Check if the temp readings change a lot as you run the windows up and down... seems a pretty sure pointer to grounding issues.
While you are down there look around for grommets where the loom is coming through the bulkhead, there is one located sort of under the radio where water can come in a play havoc with the fuse box (causing dash stays On, heaterflap errors etc), and another above the control boxes... liberally apply silicon sealant.
Re filling the system... it may require bleeding again, and again, and again... I did so via the burp through expansion cap method, it eventually took after many retries.
Check if the temp readings change a lot as you run the windows up and down... seems a pretty sure pointer to grounding issues.
While you are down there look around for grommets where the loom is coming through the bulkhead, there is one located sort of under the radio where water can come in a play havoc with the fuse box (causing dash stays On, heaterflap errors etc), and another above the control boxes... liberally apply silicon sealant.
Re filling the system... it may require bleeding again, and again, and again... I did so via the burp through expansion cap method, it eventually took after many retries.
This does seem to be fairly common on some cars, mine was constantly reading about + 8 degrees new sensors had never improved the readings and although being aware of the difference I had always found it off putting anyway Matt Smiths solution was to fit a small adjustable resister inline which with a bit of playing trimmed the readout to lining up with the actual so problem solved and has stopped the spiking which always seemed to happen when in sitting in traffic.
Had a similar problem with the oil pressure reading on my Tam. Had the engine wet gauged so I knew that wasn't about to lunch itself and proved to be fine. Running between 12 and 14 PSI at hot idle.
The AC also decided to stop working and the dash was giving all sorts of funny mileage and fuel readings. It turned out to be the dash ECU having a meltdown. Sent to Paul Smith and is now apparently sorted.
Really looking forward to getting the car going properly and putting some miles on her!
The AC also decided to stop working and the dash was giving all sorts of funny mileage and fuel readings. It turned out to be the dash ECU having a meltdown. Sent to Paul Smith and is now apparently sorted.
Really looking forward to getting the car going properly and putting some miles on her!
NJP said:
Had a similar problem with the oil pressure reading on my Tam. Had the engine wet gauged so I knew that wasn't about to lunch itself and proved to be fine. Running between 12 and 14 PSI at hot idle.
I understand that to be normal in hot conditions - I have seen it on my Tam before. Much higher when cold and much higher when driving.Indeed. TVR Power did the wet gauge check on the engine and confirmed that the hot idle oil pressure is normal.
All the gauge issues and a bunch of other stuff were caused by a mis behaving dash ECU.
I am going to get the earths throughly checked by Dave Batty while he is doing a few other bits to the car and hopefully the gremlins should be banished for a while!
All the gauge issues and a bunch of other stuff were caused by a mis behaving dash ECU.
I am going to get the earths throughly checked by Dave Batty while he is doing a few other bits to the car and hopefully the gremlins should be banished for a while!
flying said:
This does seem to be fairly common on some cars, mine was constantly reading about + 8 degrees new sensors had never improved the readings and although being aware of the difference I had always found it off putting anyway Matt Smiths solution was to fit a small adjustable resister inline which with a bit of playing trimmed the readout to lining up with the actual so problem solved and has stopped the spiking which always seemed to happen when in sitting in traffic.
Matt smiths solution is there any more detail ie type of resister wiring etc or even Matt smiths avatar name on heard would be usefulCheers
Buzz
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