looking for a bit of help. A month back I had my coolant housing replaced as it cracked. Since getting it back I’ve noticed occasionally when driving on the motorway that the engine temp has a tendency to drop for a short period then goes back up. I installed a racing line intake at the start of the year and not sure if that has something to do with it. Ive checked the oil and it’s clean, coolant is also clean and car heaters blow hold and cold air when they are supposed to pretty certain it’s not the head gasket. I was think possibly the thermostat or possibly the gauge might be faulty.
Any advice or troubleshooting would be welcome
Any advice or troubleshooting would be welcome
