| Author |
Message |
bruce wellington (Bws88tr)
Member
Username: Bws88tr
Post Number: 761
Registered: 4-2002
| | Posted on Friday, August 23, 2002 - 1:35 pm: | |
well finally got my tr back...
problem fixed...the fuse box with the connection for the right fan was kinda melted or damaged.., therefore the right fan was running intermittenly(sp) and there it did give off the appearance to me that both fans were on ,but actually i had 1 fan on , with the other working part-time..
solution... instead of buying a new fuse box or circut board for about 700.00 plus labor, we jumped the connnection and piggy-backed a fuse from some existing connections on the fuse box..
its was done tastefully,professionally and with- out a rat-wire job...
thanks guys for your help and suggestions
regards,
bruce |
Michael * (Kmx)
New member
Username: Kmx
Post Number: 8
Registered: 8-2002
| | Posted on Thursday, August 22, 2002 - 5:59 am: | |
This is most-likely irrelevant, but I had a similar problem on my previous car (308) and it turned out that part of my fuse box had melted and was causing the problems.. |
bruce wellington (Bws88tr)
Member
Username: Bws88tr
Post Number: 752
Registered: 4-2002
| | Posted on Tuesday, August 20, 2002 - 2:26 pm: | |
update
no re-coreing of radiator is needed
thermostat works fine
we are now checking the temp sensor, as hopefully both fans go on, wasnt sure if both or 1 fan was on..
ill keep you posted..thanks guys for your input
bruce |
bruce wellington (Bws88tr)
Member
Username: Bws88tr
Post Number: 746
Registered: 4-2002
| | Posted on Monday, August 19, 2002 - 10:44 pm: | |
hey mike
thanks for your quick responses and input..ill keep you posted
btw, yes i lost all my coolant, as it all flushed out thru the hose, i took a flashlite and saw no liquid at all in the tank..
thanks again guys..you are great..
bruce |
Michael N. (Man90tr)
Member
Username: Man90tr
Post Number: 631
Registered: 4-2001
| | Posted on Monday, August 19, 2002 - 10:39 pm: | |
Bruce,
Yep, overreacting is not good, its often a sign of a high bill coming even if the problem is small. Its not like the engine blew up - you just lost coolant. I agree with the slow, no overreacting, check the simple first stuff approach. I think he is treating you well here.
Good luck on this.
Michael |
bruce wellington (Bws88tr)
Member
Username: Bws88tr
Post Number: 745
Registered: 4-2002
| | Posted on Monday, August 19, 2002 - 10:35 pm: | |
gentleman
i did forget to mention my mechanic will also check out the "temp sensor" as ben pointed out..
i spoke to my guy 2nite, didnt have a chance to go over the car as i brought it in on very short notice but told me mainly he will look at the thermostat and temp sensors first and second..
he mentioned that they do not flush radiators much any more due to regulations and disposals, but he told me that once in a while a radiator has to be re-cored.
is my guy taking the right approach and not over-reacting?
he seems fair, any input from you guys??
thanks as always,
bruce |
Lawrence Coppari (Lawrence)
Junior Member
Username: Lawrence
Post Number: 181
Registered: 4-2002
| | Posted on Monday, August 19, 2002 - 5:28 pm: | |
On another car of mine I was having an slight overheating problem at low rpms. In fact, I had to turn the heater on full blast on my way home while crossing some mountains in western NC to keep the temperature gauge where it ought to be. After talking with some friends about it, one knowledgeable fellow indicated that one failure mode of the pumps is lack of cooling due to clearance changes.
I replaced my water pump and thermostat. The problem disappeared and never returned.
When I did the service on my 328 (just finished), I replaced the water pump on it with a rebuilt one. The new pump keeps the temperature gauge lower than the old one did. I did not replace the thermostat because I could see it opening when I put it in a pot of water on the stove.
Could your drive belt be slipping? In my case on the other car, the belt is driven by the cam belt. Slippage there would be a disaster. Don't know about the TR. Just babbling here. |
Ben Lobenstein 90 TR (Benjet)
Member
Username: Benjet
Post Number: 708
Registered: 1-2001
| | Posted on Monday, August 19, 2002 - 5:24 pm: | |
SteveM -
You are probably right, made that statement from memory without the aid of the usual suspects (OM/SPC/WSM/car).
-Ben
|
Michael N. (Man90tr)
Member
Username: Man90tr
Post Number: 630
Registered: 4-2001
| | Posted on Monday, August 19, 2002 - 5:12 pm: | |
The one question I have is why did you lose all of your coolant or is this just a slight overstatement. While the mechanice does what Steve agrees about below, I would make sure your temp gauge is reading properly as it may be off a bit. 230 seems like a somewhat low point to lose everything. My car routinely on a hot day when driving hard gets to 220 - 225 and she does not lose coolant. She did lose some once after a refill (obviously too much was put in). Just a thought if you are already checking the whole system. |
Steve Magnusson (91tr)
Member
Username: 91tr
Post Number: 952
Registered: 1-2001
| | Posted on Monday, August 19, 2002 - 4:52 pm: | |
Bruce -- I think your mechanic is taking a resonable approach. If one of the thermostats gets stuck in its closed position, some of the (hot) water exiting the heads would continue to recirculate directly back into the water pump (and back into the engine) without passing thru the radiators. I don't have my TR WSM with me to study further (like, would it make any difference which thermostat failed), but your symptom sure seems to match a partially impaired (but not totally dysfunctional) cooling system IMO -- and, if you're sure the water fans are working, it probably is thermostat related.
Ben -- "temp sensors in the bottom of each radiator"? -- there's only one thermoswitch in the LH radiator of my TR that turns on both water fan relays together.
|
James Pai (Jaymus)
Junior Member
Username: Jaymus
Post Number: 93
Registered: 2-2001
| | Posted on Monday, August 19, 2002 - 3:47 pm: | |
Check the cap. When mine overheated, it was due to the incorrect cap being installed after a major service. Maybe it corroded and failed to hold enough pressure.
It's probably not the cap, but that's what happened to me. Then got a new cap which holds the correct pressure. No problems since.
Ben - Any word on the tech day?
My starting problem seems to have disappeared, must of been due to the tach relay and it not switching on the fuel pump or something, I reseated all the connectors, it fires up 1 crank now. |
Ben Lobenstein 90 TR (Benjet)
Member
Username: Benjet
Post Number: 707
Registered: 1-2001
| | Posted on Monday, August 19, 2002 - 3:43 pm: | |
Bruce,
The "thermostat" doesn't tell the fans to go on at all. The TR has 2 Thermostats at the top/front of the engine that will open to allow water to the radiators, they are mechanical like almost any other normal auto thermostat. Then there are temp sensors in the bottom of each radiator that when a certain temp is hit they send a signal to the relay (in the fuse box) to turn on the fan(s) individually. You say the fans work, do you just hear them come on (BOTH)? I doubt the sensor can well "change the temp at which it becomes active", they tend to completely fail and never turn the fans on, or do their job properly. Pressure test the system for leaks, check the coolant cap for the correct PSI. Check to make sure the thermostats are opening (see if the Radiators get hot) then onto fans and fan control.
That's my suggestions.
-Ben
|
bruce wellington (Bws88tr)
Member
Username: Bws88tr
Post Number: 744
Registered: 4-2002
| | Posted on Monday, August 19, 2002 - 3:13 pm: | |
hey guys i need your help on this one......
saturday i was driving the tr after 40 minutes,i reached my destination..
i shut the engine off, the water temp guage showed 225-230 degrees, and all of a sudden all the anti freeze poured out from the hose to the street( as you know there is no recovery tank)
didnt freak, replaced the anti freeze, and brought the car to my mechanic this morning..
he suggested 2 things that he was going to check
1- possible stuck or damaged thermostat that didnt tell the cooling fans to go on earlier( btw, the fans work)
2- possible flushing of the radiator and pour in some new coolent
any other suggestions from you guys or anyone else..
thank you all in advance...
regards,
bruce |