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re: Car overheating while idle.

Posted on 4/15/16 at 12:50 am to
Posted by GeauxTigerNation
Member since 1988
Member since Nov 2013
13429 posts
Posted on 4/15/16 at 12:50 am to
2011 Ford Fiesta.
Posted by Jimbeaux
Member since Sep 2003
20141 posts
Posted on 4/15/16 at 1:08 am to
I once had to chase down the cause of that problem, and many frustrating hours later, discovered that electric fan motors sometimes don't break completely.

When I tested the fan with a wire from the battery, it ran just fine. However, straight from the battery provided a higher voltage, so the motor worked, but when the power was routed through the relay, it was a much lower voltage, which wasn't enough power to get the sick but not dead fan motor working!

I think I ended up replacing every component in that circuit before I figured it out!
Posted by CtotheVrzrbck
WeWaCo
Member since Dec 2007
37538 posts
Posted on 4/15/16 at 2:17 am to
If it only happens at idle or while stopped at redlights or in traffic replace the fan clutch, it's kinda a bitch and requires a tool that most people won't have but that applies to most all car repair these days.

Thermostat might be the culprit too.

When are you going to ditch the Ford? I'm off team Ford now that they decided to build the 2Billion dollar plant in Mexico instead of here in the U.S.A.
Posted by soccerfüt
Location: A Series of Tubes
Member since May 2013
65916 posts
Posted on 4/15/16 at 6:40 am to
quote:

2011 Ford Fiesta
Doesn't sound like a Latin party now, does it?

Chevrolet Celebritys certainly weren't driven by celebrities.
Driving one was more likely to guarantee "Celibacy" than celebrity.

I've been to Monaco and not seen even one Dodge there.

Car names-

Good luck.
Posted by 756
Member since Sep 2004
14887 posts
Posted on 4/15/16 at 7:15 am to
Do the simple first-
1. Change Radiator cap
2. Turn car on with A/C on high , open hood and wait for engine to warm- if fan does not kick on-

Hot wire fan to see if it works- if it doesn't replace fan

If fan comes on- you can either chase down the faulty thermostat, relay, switch etc or hot wire the fan inline with ignition and the fan will run all the time- In La this is no big deal- older cars had fans running off the fan belt constantly.

3. If the above does not resolve the problem - then the culprit is either the radiator is plugged up or you have engine water jacket issues.
Posted by Pepe Lepew
Looney tuned .....
Member since Oct 2008
36178 posts
Posted on 4/15/16 at 8:19 am to
quote:

2011 Ford Fiesta.


Problem solved
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