It’s a good preliminary test to get the diagnostic ball rolling though. If an engine runs momentarily on the carb cleaner does this mean the problem is in the fuel system itself as in failed pump, etc? Not necessarily, as there could be an electrical fault causing the injectors to not pulse, etc. The shot of carb cleaner is a good test but it’s also not 100% definitive. The running joke was that if someone lit a cigarette up out there the entire lot was going up in a fireball….) □Īerosol carb cleaner works much better and is far safer as it’s less volatile than ether. (I’d come into work on a cold winter morning and one could smell an ether cloud hanging over the car lot. Thankfully after that, the lot porter was banned for life from ever touching that crap again. When the starter fluid or gasoline is sprayed into the intake manifold, it starts. I had to change the oil and squirt motor oil into every cylinder to bump the compression back up enough to where the engine would even start. The ether had dropped cylinder compression to about 60 PSI and even the engine oil smelled like either. Squeeze the trigger on the starting fluid can to spray a small amount of fluid into the intake manifold. Aim the nozzle of the starting fluid can into the intake manifold. Remove the cap from the starting fluid can. One involved blowing up an intake manifold and the other involved washing the cylinder walls down on one vehicle and causing a no-start due to low compression. This is where the starting fluid will be sprayed. The lot porter at a dealer where I used to work would go nuts with ether firing up cars on cold mornings and he created a few problems with the use of that stuff. A quick shot is fine for some farmer or trucker trying to light off a balky old diesel on a cold winter morning but it should be avoided with general auto use. In any case, empty the fuel tank, replace the fuel filter and add new fuel to the system.If you mean ether then I’m not a fan of that stuff at all. It could be bad gas or fuel mixed with water. If the fuel pump does not start pumping, it is defective, or the fuel filter is clogged.
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