gremlins in the wiring - Alfa Romeo Forum
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ALFA 2.0 gtv ts

Cry Like A Baby gremlins in the wiring

hi can anyone help. only had my gtv 2 days. driving home the other day i blew the horn and stereo went off then started flicking on and off, brake lihgts stopped working, and now when i put my foot on the brakes my footwell lights come on also temp gauge seems very low and heater blowing cold plenty of coolant in system
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Ouch! Think I'd start by checking the battery is good, and that the connections are clean and tight...
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Temp low: probable thermostat problem.
Heater not hot: broken heater cable (phase 1) or faulty stepper motor (phase 2)
Various electrical anomalies: Possibly fusebox - remove all connectors from rear (of fusebox) and examine for signs of corrosion/water ingress.
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For your electrical problems check / clean / tighten all the earthing points. It's amazing the sort of electrical problems a dodgy earth can throw up. It's what I'd be checking once I'd checked the obvious (easy) stuff such as fuses etc. Good Luck, electrical problems can be a nightmare and it's usually something simple. I had an early BMW Mini that had a whole heap of electrical problems. Dealer and local specialist both diagnosed the ECU as being the problem as the early ones had a tendency to get wet. Over £500.00 and a new ecu later the problems persisted. After a day in the workshop all the problems were traced to the plug that was fitted for the optional CD changer (CD changer not fitted in my car). It had got damp and the terminals had corroded. The mechanic just chopped it off and all problems disappeared. I still have the plug as a reminder not to jump to conclusions and spend a fortune fitting parts that are not needed until I've exhausted all other possibilities. The whole job including the time taken to find the faulty plug ended up costing me over £800.00. An expensive lesson.
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Agree with kaston. A poor earth can cause all sorts of problems. The electrical current will try to find a path and will go through apparently un-related circuits to do so. I'm sure you've followed cars where the indicators and brake lights seem to flash alternately; that's a bad earth. I'd check the horn fuse first as an electrical horn draws a fair current and the fuse may have blown. Also check the horn relay for correct operation.
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Hi! Armoore. : thanks for the info on Dowty seals in the past.

Managed to acquire a good supply from Duncan Rogers Engineering,Glasgow, once we had managed to sort the correct dimensions out.
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gremlins , wiring

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