Pulling when cold

[Italchic]

I noticed when the weather started getting colder that when I would start dirving after sitting for a while the car would pull to the left. Then after driving for a while, it would stop. (It would pull upon driving and braking.) Any thoughts?

[Fi8spider]

It could be just a coincidence that the problem started occuring once the weather started getting colder.
Sounds like a sticking caliper to me which if it is and you do get them repaired/overhaul get the pair done and not just the one giving you problems.

[So Cal Mark]

sounds like brake drag to me. Along with the possibility of a caliper piston sticking, the hose can collapse inside causing the same symptoms

[Fi8spider]

Another area to look at. The caliper slides that sit between the caliper and the carrier could be dirty and have seized up a little too? This will stop the caliper from adjusting/centralising properly as the pads wear.
It's common for these slides to be greased up by the unknowing which really shouldn't be done as the grease attracts dust and makes it sticky. The slides and contact surfaces should be dry, clean and smooth.

[azruss]

if it is brake drag, ther offending brake will get hot. careful not to touch. should be able to feel which wheel is hot just by getting your hand close. As mentioned, your brake adjust is the first thing i would check. here is a simple way to reset them. back up at a pretty good speed and slam on the brakes. Do this a couple of times and that will reset your brakes.

[124JOE]

get a IR temp gun and check the temps at all rotors after driving 5 min

[AndyS]

Another area to look at. The caliper slides that sit between the caliper and the carrier could be dirty and have seized up a little too? This will stop the caliper from adjusting/centralising properly as the pads wear.
It's common for these slides to be greased up by the unknowing which really shouldn't be done as the grease attracts dust and makes it sticky. The slides and contact surfaces should be dry, clean and smooth.

Grease is a bad idea anywhere near brake pads. I do like to put a thin film of never seize on those slider blocks though to keep them from binding.

[Fi8spider]

Never Seez. Now why didn't Fiat think of that?

[Italchic]

I just wanted to say "thanks" to all those who posted suggestions. Today, after having taken my 124 out of storage, I pulled the left front wheel got out my shop manual and removed the offending caliper, cleaned and greased the pads. So far the car doesn't pull and the wheel is not hot after driving. Small victory!