Rad fans
#1
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Rad fans
Hi all, I wanted to know who long does it take the rad fans on a impreza wrx to come on?
my car is a 2001 wrx bugeye and the fans come on within 6min if running the car. More than half the rad is cold. The fans stay in a long time. Iv replaced the thermostat and burped the system but still the same.
my car is a 2001 wrx bugeye and the fans come on within 6min if running the car. More than half the rad is cold. The fans stay in a long time. Iv replaced the thermostat and burped the system but still the same.
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heaters blow hot air when I give it a bit of gas then goes cold again.
Thermostat is new water pump was replaced 3 years ago
#5
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Its 100% airlocked. The heater matrix is a ******* to unlock. The tell tail sign is a "running water" sound when car is could from the cabin. It can take a competent mechanic to fully bleed an EJ series engine due to the design.
Jack front of car up so radiator cap is highest pint in system. leave cap off overnight to let some air to naturally escape. If the air log is big enough it can be forced to recirculate.
Try and source one of these https://www.ebay.co.uk/itm/352233953041?ul_noapp=true Anti spill funnel. Heres a video of it in action
I'm going home tonight to rebleed mine after a new radiator install. on a hawkeye coolant capacity is 7.8l and ive pretty much put that in and my temperature averages just above the 1/3 line and in the 30degree summers it never goes past the 1/2
Jack front of car up so radiator cap is highest pint in system. leave cap off overnight to let some air to naturally escape. If the air log is big enough it can be forced to recirculate.
Try and source one of these https://www.ebay.co.uk/itm/352233953041?ul_noapp=true Anti spill funnel. Heres a video of it in action
I'm going home tonight to rebleed mine after a new radiator install. on a hawkeye coolant capacity is 7.8l and ive pretty much put that in and my temperature averages just above the 1/3 line and in the 30degree summers it never goes past the 1/2
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I’m going to re burp the system, is it better to fill the rad first, the using a funnel to fill the header tank via the hose from the turbo.
iv tried searching and can’t find the anything or I’m just too dumb
iv tried searching and can’t find the anything or I’m just too dumb
#7
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Read this. Alcazars method is the best way to fill a system. I did mine last week and it worked a treat.
Read this. Alcazars method is the best way to fill a system. I did mine last week and it worked a treat.
Last edited by Jon T; 06 May 2019 at 04:42 PM.
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#10
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Possibly a clogged rad?
Side note: I recently changed mine and got an airlock. Bottom hose was cold but top one was fine. Squeezed the bottom one a few times with the expansion tank open/funnel in and this did the trick. However, my fans didn't kick in early/engine temp stayed around 1/2 way.
Side note: I recently changed mine and got an airlock. Bottom hose was cold but top one was fine. Squeezed the bottom one a few times with the expansion tank open/funnel in and this did the trick. However, my fans didn't kick in early/engine temp stayed around 1/2 way.
#11
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Rad is not clogged. I took it off and put the garden hose on it until clear water came through it.
i did notice that both hoses going to the heater matrix are cold and the hose going to the turbo looks no good and brittle.
im going to replace the water hose going to the turbo and put the garden hose on to one of the hoses to the matrix. Then burp the system following Alcazars steps.
i did notice that both hoses going to the heater matrix are cold and the hose going to the turbo looks no good and brittle.
im going to replace the water hose going to the turbo and put the garden hose on to one of the hoses to the matrix. Then burp the system following Alcazars steps.
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