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YOUR RESEARCHFan and resistor
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Check whats wrong
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Read evidence and context
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Performed · outcome unconfirmed · Original poster
So I checked whats wrong with fans by jumping relays and here are my findings:
Leading evidence: 'Check whats wrong' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check whats wrong' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Check with durametric by switching every fan's speed
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Suggestion · Original poster
As suggested I did a quick check with Durametric by switching every fan's speed on.
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Suggestion
The best way to keep your car as cool as possible in stop and go traffic with a stock setup is to use the AC.
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Hi!
I have spent couple of hours looking for the answer which suits current behaviour of my car but without success. Hope to find help here
Long story short
just noticed that my car gets a little too hot in the traffic jam, it almost reaches the outside of zero in 180.
So I checked whats wrong with fans by jumping relays and here are my findings:
Jumping low speed relays:
Left side goes slow, right goes high
Jumping high speed relays:
Neither left nor right works
I jumped them the same way as I did with low speed. Jumping two pins, the top with the bottom one
Is it possible that relays which are responsible for high speed need to be jumped other way?
Why right fan went high speed when its low speed relay was jumped?
Is it possible that both resistors are somehow broken?
Has anybody had a similar issue?
Thanks!
Another thing to check if if you have had the car for years and have noticed temps go up over the period, the radiator needs to be cleaned. It's always surprising how much crap gets between the radiator and ac condenser. At least that was what I found.
What year is your car? I have a 99, and the only time the fans come on at low speed in traffic is if the temp gauge reads all the way to the last white line. That�s an indicated 115C, but an actual 99-101C via ODBC or Durametric.
The best way to keep your car as cool as possible in stop and go traffic with a stock setup is to use the AC. Pressing the AC button keeps the fans on low speed the whole time. High speed will kick on if the AC pressure gets too high, which also help cool the radiators and therefore, engine.
Thank you very much for every feedback!
As suggested I did a quick check with Durametric by switching every fan's speed on. It turned out that there was the issue with low speed, fans did not manage to spin. Today I managed to fix it! I followed your tips posted here and in other threads regarding this kind of issues and... temperature is significiant lower
I did the same test as before by jumping the relays and It worked as it should. It is really surprising how this circut behaved when resistors were broken. By jumping low speed resistors, fans were working at high speed
Thank you!
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