Glossary / General

fuel pressure

27 Episode Mentions

Too Afraid to Ask

Fuel pressure is how much force the fuel has in the lines that send it to the engine. If this pressure isn't right, the engine might not start or run well.

Technical Definition

Fuel pressure refers to the pressure of the fuel in the fuel rail, which is essential for the engine to start and run properly. If the fuel pressure is too low or too high, it can cause starting issues or poor engine performance.

Hear It Discussed

"But have them check the pressure first. I think they're going to find out the pump's no good. Okay, the fuel pressure."
#2615: 'Relaxed Fit' Comes for Cars The Best of Car Talk 37:56

"Fuel filter, that idle, you should have plenty of fuel pressure at idle, you know, if it's running so good at higher idle, most likely."
Guys Giving Free Car Advice Over The Air You Can Call Too Under The Hood show 09:42

"And I guess what he's thinking is high fuel pressure is pushing the needle off its seat."
Ron Ananian, The Car Doctor - Classic Car Doctor - October 3, 2015 - Hour 2 - Noises, Batteries & The Truth About When Cars Fail Ron Ananian The Car Doctor 35:18