cooling system problem // please help...
#1
TREZART
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cooling system problem // please help...
alright WTF ? if its not one thing its another with my rx8 ,,, cooling system display usually a little below half on the guage ,,, but lately even on normal steady driving the tepm. guage shows a little too warm . not to the overheating point but the guage shows about 3/4 to the hot side in other words hotter than normal ,, it would fluctuate it will get warm then goes back to the middle and back and forth ,,, i changed my radiator hoses they were a little soft i thought that was the problem but it didnt help at all,, im kinda lost with this one so PLEASE HELP ... i figuered the thirmostat and the water pump either works or dont they dont have a middle and my problem is in the middle of normal temp and overheating ,,, please help
#4
Super Moderator
Do Moderators do ANYTHING!!???..can these threads be put in the Correct Series 1 SUB FORUM..Please..
#5
X e p i A
iTrader: (1)
alright WTF ? if its not one thing its another with my rx8 ,,, cooling system display usually a little below half on the guage ,,, but lately even on normal steady driving the tepm. guage shows a little too warm . not to the overheating point but the guage shows about 3/4 to the hot side in other words hotter than normal ,, it would fluctuate it will get warm then goes back to the middle and back and forth ,,, i changed my radiator hoses they were a little soft i thought that was the problem but it didnt help at all,, im kinda lost with this one so PLEASE HELP ... i figuered the thirmostat and the water pump either works or dont they dont have a middle and my problem is in the middle of normal temp and overheating ,,, please help
Any ideas? Anyone?
#8
Super Moderator
Agree with Easy....
There is also a very remote possibility that your Temperature Sender Unit (Behind Water Pump) which in turn is connected to your Dash Temp Gauge is faulty.
If these Brass sender units play up, you can get false readings...but AFAIK they are a very reliable unit.
Have been used on Most Mazda's over the past 20 years...like 1991 Mazda 626,2,3,6,MX-5, 323, B Series..etc.
Genuine Mazda Part Number
B593-18-840A Sender Unit
9956-41-200 Washer
There is also a very remote possibility that your Temperature Sender Unit (Behind Water Pump) which in turn is connected to your Dash Temp Gauge is faulty.
If these Brass sender units play up, you can get false readings...but AFAIK they are a very reliable unit.
Have been used on Most Mazda's over the past 20 years...like 1991 Mazda 626,2,3,6,MX-5, 323, B Series..etc.
Genuine Mazda Part Number
B593-18-840A Sender Unit
9956-41-200 Washer
#9
X e p i A
iTrader: (1)
Agree with Easy....
There is also a very remote possibility that your Temperature Sender Unit (Behind Water Pump) which in turn is connected to your Dash Temp Gauge is faulty.
If these Brass sender units play up, you can get false readings...but AFAIK they are a very reliable unit.
Have been used on Most Mazda's over the past 20 years...like 1991 Mazda 626,2,3,6,MX-5, 323, B Series..etc.
Genuine Mazda Part Number
B593-18-840A Sender Unit
9956-41-200 Washer
There is also a very remote possibility that your Temperature Sender Unit (Behind Water Pump) which in turn is connected to your Dash Temp Gauge is faulty.
If these Brass sender units play up, you can get false readings...but AFAIK they are a very reliable unit.
Have been used on Most Mazda's over the past 20 years...like 1991 Mazda 626,2,3,6,MX-5, 323, B Series..etc.
Genuine Mazda Part Number
B593-18-840A Sender Unit
9956-41-200 Washer
The gauge sits at normal and then will jump up and then it will go back down to normal. It seems to jump up when the revs are up, but it moves back down to normal pretty fast.
#11
Super Moderator
You could check the wiring connector plug to the Temp Sender Unit (behind water pump), see if it is loose??
Could also be the DASH Gauge itself, BAD news is you can ONLY replace this part with a Complete New Speedo Head Unit...!!!
Could also be the DASH Gauge itself, BAD news is you can ONLY replace this part with a Complete New Speedo Head Unit...!!!
#13
Super Moderator
How many miles has your 8 done?..
A pulsating feel through your brake pedal is usually brake rotors (front) with an uneven wear/surface...or more than likely if you are doing HARD stops from 70 MPH it is your ABS working which is normal.
Do you feel a pulse when normally braking??..if so..
Generally a machining and new pads would rectify this, in the US you don't seem to machine but throw away rotors for new ones.
A pulsating feel through your brake pedal is usually brake rotors (front) with an uneven wear/surface...or more than likely if you are doing HARD stops from 70 MPH it is your ABS working which is normal.
Do you feel a pulse when normally braking??..if so..
Generally a machining and new pads would rectify this, in the US you don't seem to machine but throw away rotors for new ones.
#14
X e p i A
iTrader: (1)
How many miles has your 8 done?..
A pulsating feel through your brake pedal is usually brake rotors (front) with an uneven wear/surface...or more than likely if you are doing HARD stops from 70 MPH it is your ABS working which is normal.
Do you feel a pulse when normally braking??..if so..
Generally a machining and new pads would rectify this, in the US you don't seem to machine but throw away rotors for new ones.
A pulsating feel through your brake pedal is usually brake rotors (front) with an uneven wear/surface...or more than likely if you are doing HARD stops from 70 MPH it is your ABS working which is normal.
Do you feel a pulse when normally braking??..if so..
Generally a machining and new pads would rectify this, in the US you don't seem to machine but throw away rotors for new ones.
#15
X e p i A
iTrader: (1)
An update on my issue. I pulled the car apart over the weekend so I could take a closer look at the fans. Everything looks and works normally.
I also flushed the coolant. After flushing the coolant the first two time I drove the car it was even quicker to rise above the normal temp mark. I was thinking, "great, I made it worse!" But after that it suddenly stopped. I went for a long drive yesterday with some freeway and red lining it several times and the temp gauge didn't budge.
I'm not going to claim it's fixed yet. I would like to take it for a spin on a day with higher ambient temps (even though it's been doing the overheating thing in lower temps like we're having now). But maybe that did it.
I also flushed the coolant. After flushing the coolant the first two time I drove the car it was even quicker to rise above the normal temp mark. I was thinking, "great, I made it worse!" But after that it suddenly stopped. I went for a long drive yesterday with some freeway and red lining it several times and the temp gauge didn't budge.
I'm not going to claim it's fixed yet. I would like to take it for a spin on a day with higher ambient temps (even though it's been doing the overheating thing in lower temps like we're having now). But maybe that did it.
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