Car struggles to make fuel pressure

phunk

Ive never seen a regulator react to heat, it would probably take some really extreme heat - they are rather simple devices and if constructed with quality materials they are not very prone to failure without debris making it in. It wouldnt hurt to try swapping the regulator out just to test with another, although its unlikely the problem.

For hose clamps, smallest you can find probably, its a 1/4" ID hose. Thats the return side that blue hose I was looking at. If it leaked the over-tank siphon and canister refill would be weakened.

If there is pressure problems even with a full tank when the car heats up, its probably a bad pump. The pump in your photos is red, Walbro doesnt make any red pumps. If that isnt an Aeromotive Stealth pump its an ebay pump that probably needs to be replaced.

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