Question about Husqvarna "Chain Saw - 16" Bar, 3 Hp

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Will run great when first started but after you have stopped it then go back to restart it it will not run. You have to push the air purge many times and then it will try to start but wont idle. When I loosen the gas cap there is a big release of pressure. This has only happen this summer when I used in the spring I did not have this problem

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Sounds like you have a tank venting problem. It vents either through the cap directly or through a vent fixed into the tank itself. Hope this helps!

Posted on Sep 14, 2010

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Need to kmow how to put my feul lines back on my poulan chainsaw


There should be 2 lines on the carburetor and 2 nipples on the purge bulb. When depressed the purge bulb with push air out of 1 side of the nipples and will draw air in on the other side. Find these 2 nipples on the purge bulb. The side that pushes air out will be the fule line going into the fuel tank without the fuel filter. The fuel filter connects to the carburetor. You are pulling fuel from the fuel tank "through" the carburetor.

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It is quite obvious, by the amount of reqests we see that there is confusion regarding the correct orientation of fuel hoses on externall primers.
Lets start by saying this component is not a primer, if you were to push fuel into the carb, you would just flood it, and make starting near impossible, they are purges, they actually pull fuel from the carb, and dump it back into the tank, this way you cannot over purge the machine, and when the saw runs out of fuel, it very quickly re fills the carb ready for easy re starting.
So the fuel hose from the fuel tank,the one with the fuel filter on the end, goes to the fuel inlet elbow on the carb, this is the elbow closest to the pump cover on the carb, normally held with one philips head screw and made of alluminium. The other hose from the carb, closest to the metering side of the carb, normally held with four screws and made of chrome plated steele, goes to the shorter of the two connections on the back of the purge, this is the suction side,by pulling fuel from the carb emptys the fuel chamber, atmospheric pressure from the vent hole in the metering cover pushes the metering diaphram down opening the fuel inlet needle, allowing fuel from the tank to enter, and re fill the chamber, you can test this by putting a finger over the connection, depress the purge bulb and let go, you should feel your finger sucked down, the longer of the two connections on the back of the purge is the pressure side, this hose will go back to the tank, it will just push into the tank with nothing on the end, you can test this side by putting a finger over the connection, depress the purge bulb, you will feel a pressure on your finger, if you have clear fuel hoses, you will be able to see the fuel movement. Any signs of cracks, splits, or fuel loss from any of the hoses will greatly effect the running and well being of the machine.
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Jeep grand cherokee zj 96. Run good while not moving, then for a few minutes will drive great before spitting and spluttering and losing all power and now will stall. Then if I turn off and restart it...


The first thing to do to save money when the engine stops performing is to run the fault codes. I suggesting that if you do you will find a fault with the canister purge valve /solenoid that is preventing the fuel getting to the injectors.

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Here is the info

NOTE: The ignition key must not be on prior to the cold start otherwise the heated oxygen sensor diagnostic may not run.

1. As soon as the engine starts, idle the engine in drive for two and a half minutes with the A/C and rear defrost on. OBDII checks oxygen sensor heater circuits, air pump and EVAP purge.

2. Turn the A/C and rear defrost off, and accelerate to 55 mph at half throttle. OBDII checks for ignition misfire, fuel trim and canister purge.

3. Hold at a steady state speed of 55 mph for three minutes.

OBDII monitors EGR, air pump, O2 sensors and canister purge.

4. Decelerate (coast down) to 20 mph without braking or depressing the clutch. OBDII checks EGR and purge functions.

5. Accelerate back to 55 to 60 mph at half throttle. OBDII checks misfire, fuel trim and purge again.

6. Hold at a steady speed of 55 to 60 mph for five minutes.

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1 Answer

The car will run for 5 miles or idle for 20 minutes and then the engine just dies. It cannot be restarted until it cools down, or for about an hour or so. No check engine light comes on, and it runs...


Classic clogged fuel filter.
Restriction prevents full fuel flow but it will run until the restriction increases to the point there is not enough fuel.
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