[Need4speed]

New electrical problem !!

After having the car at various mechanics for the last 5 weeks to find out why it sometimes won't start, I had the wiring checked and 'corrected' (had after market fog light, alarm, radio, sterio, etc) and now it starts everytime. ("bad starter solinoid")
Trouble is, it's now overheating-going almost to 250 and warning light coming on. When I checked, fans are not coming on. (Neither are instrument panel lights and dr's footwell light)
Why are'nt the fans coming on, ideas?

Very frustrated!

 

[ghnl]

Alfa gauges aren't known for being the most accurate. Are you really sure it is the engine overheating or could it be the gauge (or sender) is faulty? It could be as simple as a loose/corroded wire or ground.

 

[the_sicilian]

i can really help on this one. i have a black late spider as well. this is a known issue with motronic spiders.

on thing is that your fans should be working. the second relay from the left is your fans relay. it has a 30amp fuse on it. the relay needs to be there. (if its not, u can fetch one at Vicks. search for "Bitron Bo47") if it exists, check the 30amp fuse there.

we need to get your fans running. we will. its a very simplified and solidstate system thats seperated from the rest of the car. i even have an extra set of fans i can sell ya if u need them.

i recently overcame my overheating issue by drilling out very slightly the top overflow nozzle that leads the top-hose into your coolant reservoir. i also made sure that i lowered the fluid level. i was definitely still overheating until my coolant was below the middle-seam when cold. even my mechanic, who can seemingly walk on water and bring life to the dead, overfilled that reservoir.

also make sure that your coolant cap is still in good working order. it should have a fresh rubber gasket that can still hold and have a spring still in the plastic cylinder and the small whole should be clear. i had to replace mine from deterioration. when it goes, the water will splash over onto the injectors, where the over-heat sensor is located.

see, the overheat light and the heat gauge are completely seperate (unlike an american car) and actually fed by two different sensors. the gauge is fed by a sensor on the radiator, while the overheat-light is fed by a different sensor on the head, near the injectors, and near the coolant reservoir.

i still seam to overheat when running the AC and max-performing the car, but i finally have the overheat under control in all conditions without it.

 

[Need4speed]

Alfa gauges aren't known for being the most accurate. Are you really sure it is the engine overheating or could it be the gauge (or sender) is faulty? It could be as simple as a loose/corroded wire or ground.

Pretty sure, both temp guage and overheating warning red light came on, and fans don't

 

[Tifosi]

They didn't get thier plug knocked loose during some recent routine maintenance did they?

How about the relay(s) that control them? They in good working order? (swap in a known good one just to check?)

 

[Need4speed]

Possibly, I am a mental midget with electrics, I am taking it back to the guys who worked on it last week! But ideas to narrow their search is helpful indeed, thanks.