mihai Posted August 24, 2012 Share Posted August 24, 2012 Hello, when the car is on idle the temperature stays on middle, ( ok) when i drive slowly or hard goes higher closee to red an come back to middle again and again , i have aluminium radiator and wiscous fan witch is a bit worm but it run normaly ? Cheers guys ! Quote Link to comment Share on other sites More sharing options...
Alex Posted August 24, 2012 Share Posted August 24, 2012 This is symptomatic of poor coolant circulation. Q1) is the coolant brim full in the radiator when you take the cap off? Q2) Is there coolant in the overflow? Q3) Does the coolant get pushed out of the overflow when the engine is hot? (Run it up to temp, park up and watch it with the engine running. Q4) If you shut the engine down after warming it up, can you reach in through the fan blades and detect any cold area's on the back of the rad panel. A1) Buy some more Toyota 4Life Red coolant and fill it if it's low. Retest and bear in mind Q3. A2) No? Fill it then...as per 1. A3) Replace the radiator car with a new one from Toyota. A4) Replace the radiator - cold spots = blocked tubes = radiator not working properly None of the above? Then I would then presume the thermostat to be faulty/sticky, replace with stock or TRD item. Still not working? Time to inspect the water pump... Quote Link to comment Share on other sites More sharing options...
mihai Posted August 25, 2012 Author Share Posted August 25, 2012 This is symptomatic of poor coolant circulation. Q1) is the coolant brim full in the radiator when you take the cap off? Q2) Is there coolant in the overflow? Q3) Does the coolant get pushed out of the overflow when the engine is hot? (Run it up to temp, park up and watch it with the engine running. Q4) If you shut the engine down after warming it up, can you reach in through the fan blades and detect any cold area's on the back of the rad panel. A1) Buy some more Toyota 4Life Red coolant and fill it if it's low. Retest and bear in mind Q3. A2) No? Fill it then...as per 1. A3) Replace the radiator car with a new one from Toyota. A4) Replace the radiator - cold spots = blocked tubes = radiator not working properly None of the above? Then I would then presume the thermostat to be faulty/sticky, replace with stock or TRD item. Still not working? Time to inspect the water pump... Thank you very much ! A1: it is enought coolant in the radiator ! A2 i i always check to have coolant. A3: the radiator in like new and i didn't have this problem with the overheating ! Thank you! I will check and do what you told me, and come with the good news ! Cheers! - - - Updated - - - This is symptomatic of poor coolant circulation. Q1) is the coolant brim full in the radiator when you take the cap off? Q2) Is there coolant in the overflow? Q3) Does the coolant get pushed out of the overflow when the engine is hot? (Run it up to temp, park up and watch it with the engine running. Q4) If you shut the engine down after warming it up, can you reach in through the fan blades and detect any cold area's on the back of the rad panel. A1) Buy some more Toyota 4Life Red coolant and fill it if it's low. Retest and bear in mind Q3. A2) No? Fill it then...as per 1. A3) Replace the radiator car with a new one from Toyota. A4) Replace the radiator - cold spots = blocked tubes = radiator not working properly None of the above? Then I would then presume the thermostat to be faulty/sticky, replace with stock or TRD item. Still not working? Time to inspect the water pump... Thank you very much ! A1: it is enought coolant in the radiator ! A2 i i always check to have coolant. A3: the radiator in like new and i didn't have this problem with the overheating ! Thank you! I will check and do what you told me, and come with the good news ! Cheers! Quote Link to comment Share on other sites More sharing options...
tony tt Posted August 25, 2012 Share Posted August 25, 2012 I will check and do what you told me, and come with the good news ! Cheers! That's a positive mental attitude right there! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.