Driving on hwy with ac on, puff of white smoke from air vents. Pulled over & shut everything down. 10 minutes later started up to move off hwy. No smoke so I came home, 10 miles later. No more smoke and don't see anything obvious under the hood. Running fine for the time being. Any ides what it happened or what problem I have?
SOURCE: Puff of smoke from crack between heater vent and dash
antifreeze i think,heater matrix leak ,try putting a rad leak stopper in
SOURCE: white puffs of smoke from the drivers side more near the cowl are
u have oil leaking on the exhaust system, have the car put on a rack and check for the source of leak.
SOURCE: 93 E150 5.8L Starts, runs fine; put it in drive
check the fuel regulator vacumn line,if its getting vacumn then maybe the regulator is bad,which cost about $55.00
SOURCE: 2 days ago I turned
Sounds like you do.
With the engine cold top off the radiator with coolant. Start the engine allow it to warm up. Look for any drips or wet spots from cooling system components. Things like Radiators and water pumps would be fairly common. Pin holes in hoses or leaking gaskets may be a little harder to spot.
The make a tool called a cooling system pressure tester that will pressurize the cooling system to make it easier to spot leaks.
Also most shops will check the cooling system for a moderate fee. Once you know what is leaking you can decide if you want to tackle it yourself or let them handle the repair.
I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa
SOURCE: was slowing down to go
Hello, You need to look under the bonnet for traces of the smoke. You could see signs of liquid splatter, and see burned wires or parts. There are rubber belts which drive all the pulleys on the engine. If the belt broke, it could easily have tangled up with important engine wiring and tore them loose. You could also have lacerated a cooling hose and temporarily shorted the engine.
There are machines which are handheld scanners and they can pinpoint an electrical defect. If you do not observe a burned up or wet part, then you will need to scan the car. Another possibility would be the timing chain or belt. This is a different belt than the one that drives the pulleys.
Depending on the engine design, you may be able to see the camshaft gear turn. If you have the metal shroud around the front of the motor, the timing belt is under the shroud. There are marks on the gears for timing. The timing belt gears are not like a pulley. They have to be in sync.
There is a safety switch called an Inertia switch. It would not be responsible for smoke and is why I mentioned it last. Only if the engine appears not to be getting fuel, would you reset this device. It will either be behind the kick panels under the dash or in the rear quarter panels behind a removeable flap. Just push the button down to reset it.
I hope my solution is helpful in fixing your car.
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