[plefe]

Hey guys!

Has there ever been any ride height issues associated with this fueling problem? Here's why I ask. Say you have 2 adults (300lbs) riding in the front of the car with no weight in the back, so that you initially change the ride height, and you're still having the cutting out problem. Then you head to the grocery store and add a 100lbs or so of them to the trunk. Our trip is 40 miles round trip. No cutting out whatsoever occurred on the trip home. Anyone checked this?

 

[elwesso]

I dont think it would affect it, unless you have REALLY bad shocks in the front so that it goes down a lot.

 

[Katshot]

Sorry dude, I'm not following you.
What cutting out? Describe what's happening.

 

[kcnewell]

I take it that the "Level Ride" is non op. because if it works that would have NO effect whatsoever.

Is that 300 pounds each or 300 pounds total? If it's the former...Them's a couple "O" big'uns. If it's the latter...Them's a couple "O" little'uns!

 

[plefe]

that's 210 lb man and his 120 lb wife. come on guys, when your gas tank is full and the fuel pump gets hot, the motor cuts out. now take that problem into electrics, ride height etc. would ride height in the back cause the fuel pump to act up. the sending unit seems ok, and it's not likely that the baffles in the tank are bad. Car lunges after about 20 miles drive time. fueling problem likely with the pump, but can ride height cause the tank to not be correct (balance, whatever) to cause the cutting out problem. this is a 4.9l motor in a 1991 deville

 

[Katshot]

You're just guessing. get a gauge and get some readings. The fuel pump shouldn't be getting too hot after driving since it's cooled by the fuel in the tank. Now if you drive around on empty all the time.........

Could it be vapor-locking? Could it be non fuel related? I've never heard of the ride height having an effect on the fuel pressure or fuel delivery system period.

 

[plefe]

What might cause it to vapor lock?

 

[Katshot]

Fuel line too close to the exhaust is the biggest reason. The type of fuel you're using MIGHT have a contributing factor.

 

[plefe]

Yah, the highest octane we can get around here is 91, but should be enough, and as close as the fuel lines are, why wouldn't have that affect occurred right out of the factory?