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Yes, air in the fuel line can cause irregular engine behavior, including a high idle. When air introduces inconsistencies in fuel delivery, it can lead to improper air-fuel mixture ratios, which may result in the engine running lean and increasing idle speed. Additionally, air can create bubbles that disrupt fuel flow, further contributing to erratic idling. It's important to ensure the fuel system is free of air to maintain optimal engine performance.
What else can I help you with?
What would cause a car to idle rough?
If it's an old car, a lack of fuel flowing to the carb. So maybe a fuel pump or dirty fuel line.
96 Chevy s10 4cylinder running at high idle and will not kick down?
If this happened all at once, check the vacuum lines. A cracked or broken line will cause high or rough idle.
What could cause high fuel pressure on your 1991 z28 camaro?
A bad fuel pressure regulator or a clog in the fuel return line that leads back to the tank will cause this.
Does a dirty fuel filter affect gas mileage?
Very much so. A dirty filter causes restriction in fuel line then which requires more fuel to be pushed through into engine. Also can cause rough idle and sometimes stalling
What happens if your 97 Camry starts fine but wont idle on its own you have to keep it at a contant idle for a minute or two then it starts to idle on its own and after its been running it wont do it?
The issue may be one of several things. It may be caused by a clogged fuel line or fuel filter. There may also be a problem with the fuel pump, or a hole in the fuel line. It may also be caused by the fuel/air mixture being off.
Can a frail fuel line cause a diesel engine not to start?
A frail fuel line can cause a diesel engine not to start.
What does a fuel pressure regulator vacuum line do?
regulates fuel presure at idle or under load so you dont get to much or too little fuel
What would cause a Mercury Grand Marquis 46 police intercepter to drop idle and shut off?
Take an air hose and disconnect the fuel line right at the tank and blow the "sock" off of it. There is a mesh sock that collapses and blocks the fuel line under high performance conditions. A quick shot of air into the tank will make it float loose in the tank but at least it won't constantly be a problem.
350 tpi fuel pressure?
Your fuel pressure drop could be do to a clogged filter, pinched line/hose, or a weak fuel pump. You should have around 35 psi at idle and 43 off idle. I hope this helps answer your question.
Why does my '99 Oldsmobile Intrigue run great while driving foot on gas but sometimes stall due to rough idle when stopped at low idle or when I put it in reverse?
One common cause is a leaking fuel pressure regulator. When they leak, raw fuel gets into its vacuum line and causes a rich condition which can cause the car to stall, and also give a hard starting condition. - TechJK --------------------------------
What could cause a 1993 jeep grand cherokee's engine to idle high when in Park?
How high does it idle in park? It could be a few things depending on the amount of idle. It could be a vacume line, it could be your idle screw. If you will post or email me at mudislife2@yahoo.com the amount that it idles at than i can help you more from there.
Can you replace the metal high pressure line with rubber fuel line?
NO!
