is this pump supposed to let gas flow through it without turning engine over. gas flows right thru outlet side .
774638
don't know, mine came defective - ended up taking to mechanic who put a different brand on - it pumps only while engine is turning though . . .
774639
I believe this is a pulse pump, operating from the vacuum of the intake manifold. It will not pump without cranking the engine.
1052410
Yes, because of the way it heats and cools the opposite will be coming out of the exhaust as I believe it just inverts the process it uses to heat or cool. It's what's known as a heat pump.
1288810
Any air leak upstream of the pump will kill the draw. The input fitting came loose on mine and allowed air to slip past the o-ring, killing the draw for me at one point. Any obstruction will do the same. Also, if the hose/tube you're using for pickup gets locked against the bottom (like putting your hand to a shop-vac hose), then you'll get obvious results, so be sure to use a stand-off and/or filter screen to help prevent this.
1528537
Did u open the valve? Check to see if there is gas flow by opening the valve BEFORE you insert it into the grill.
100717
Yes. On mine we just placed insert into the open area and secured then installed the gas lines. The opening for the gas line was located on the right side of the box on the one I got.
558840
i would check for a vacuum leak on the intake side before changing or adding a pump, if it works good some time, it sounds like a air leak .Lost of luck
2247903
If you saw is not running when you turn iton its side or upside down, i took mine apart and found the gas line is about an inch too long. Cut about an inch and a half off of it then put the filter-weight back on the end. I wrote the company and informed them of this matter. That's what was wrong with mine. I hope this helps.
845089
I encountered this problem and while reading the manual I found that fresh gas must be used for proper operation. I replaced the gas and it performed well.
601541
i use a standard galvanized reducer to bring outlet on pump down to a standard 3/4 inch house adapt. but should have a vertical check valve at the pump out let if hose discharge is above pump , or water could just run back into pump making it cycle much more
706552
The pump does not restrict water going through it. So if you have pressure on the inlet side of the pump, the water will still flow through it.
1233979
I would advise adding this hole near the outlet to prevent an air lock condition in the event the pump continue to run when water has dropped below the impeller. You may notice the pump already has a small hole at its base but it is still possible to have excess air build up whereby prevent water from getting pumped because the air was not able to be purged. I did this experiment myself when I asked myself the same question are are asking and concluded adding the extra hole as instructed was a good idea. I added the hole just above the threaded fitting on the PCV pipe and the pump work great. You may notice a small amount of water shoot out the hole when the water has reached its lowered point in the pump cycle but that is normal.
502331
purchased the fuel pump with the understanding it would work with a plastic gastank but when installing it I noticed the arm witch controls the gas gauge rubbed the side of.the tank. Because of urgency I installed it anyway. It works great and truck runs fine but no gas gauge.
992452
You have to drain the water out of the bottom by unscrewing the nozzle. If the filter is not drained and you have water it will overflow and water will get in engine. I like these because they are easy to drain. Gas should not have much water in tank so is drain mine every 2-3 tanks of gas and I have 200 gallon gas tank.
1439
Do you have a quick disconnect or a thread ends mines a thread end make sure you push it all the way on be for turned the gas on hope this helps if not go to YouTube you may find what you're looking for
171045
NO, but the manifold holds a large amount of gas, I suggest shutting valve and using gas in line.
1173642
Verify your intake house is tightened.Also check the gasket in the house intake at the pump end did not fall out.
494068
I have not had this problem with either pump I installed. Possibly water is not staying in the line and the gaskets are getting dried out or your intake and overboard discharge are clogged and water is not flowing smoothly through the system or (if you have one) your holding tank is full so there is no place for the water to pump into...