got hot air all the time, except when A/C is on

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mihalyn90
Project Petrol Head!
Project Petrol Head!
Posts: 519
Joined: Tue Nov 24, 2015 10:12 am
Model: 1.7

got hot air all the time, except when A/C is on

Post by mihalyn90 » Wed Oct 23, 2019 3:25 pm

As title said,

My heater today started blowing only hot, no matter the position. Couple of days before was only warm on cold position, got warmer and warm and now only hot... I thought about HCV, but if i turn the A/C on, it gives cold :)

any idea? panel, or valve?
0 x
Ford Puma 1998 - 1.7L

Magnaflow Core Competition backbox + TIP
Bilstein B8/B6 30mm drop
Xplod 1100W woofer
Complete rebuild HERE

mihalyn90
Project Petrol Head!
Project Petrol Head!
Posts: 519
Joined: Tue Nov 24, 2015 10:12 am
Model: 1.7

got hot air all the time, except when A/C is on

Post by mihalyn90 » Tue Nov 19, 2019 8:48 pm

ok, thermostat changed, still overheating... cylinder head down, planned, removed 0.1... don't know if this is the problem... we will see... maybe a blocked radiator? lower hose is hot, higher hose is cold... coolant temp rising... maybe faulty temp sensor? i understood the puma has two sensors... one for the gauge, and one for the ecu... the gauge one is working, where is the other?

thanks
0 x
Ford Puma 1998 - 1.7L

Magnaflow Core Competition backbox + TIP
Bilstein B8/B6 30mm drop
Xplod 1100W woofer
Complete rebuild HERE

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Van_Dammesque
Project Regular
Project Regular
Posts: 403
Joined: Sun Dec 11, 2011 7:54 pm
Model: 1.7

got hot air all the time, except when A/C is on

Post by Van_Dammesque » Wed Nov 20, 2019 9:36 pm

Does the fan come on?

My problem after replacing the HCV was the actual control panel near the gear stick.
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