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What else can I help you with?
What cause an engine to idle high?
A vacuum leak could cause that.
Would bad pistons cause the engine to shake?
Most definitely. Any miss will cause the engine to shake. A vacuum leak will also cause this.
What happens when a vacuum line is broke on a PCV valve on a 305?
The vacuum leak will cause the engine to run lean.
Can a vacuum leak cause engine to knock?
Yes, a vacuum leak can cause engine knock. When there’s a vacuum leak, it disrupts the air-fuel mixture entering the engine, leading to a lean condition. This can result in higher combustion temperatures and increased engine knock or detonation. Additionally, the engine may struggle to maintain proper timing and performance, exacerbating the knocking issue.
Can a vacuum leak at the manifold cause the check engine light to come on?
Yes
What could cause engine to idle irregular?
A vacuum leak is one possibility.
Will a small amount of gasoline in a diesel engine damage the engine?
No - a small amount will not damage the engine, though may cause it to run badly. However, a larger amount can cause serious damage, and the tank and engine should be drained.
Will a vacuum leak cause the check engine light to come on?
It could.It could.
Will a loose gas cap cause a 2005 Nissan Pathfiner to start running badly?
No, but it could cause the check engine light to illuminate.
Will a vacuum leak always make your engine run rough?
No, on a fuel injected engine it can cause high idle speed.
What cause power lose on a 2000 BMW 528i engine?
Power loss on an engine is generally due to an air problem. Check the vacuum lines on the engine to see if there are any leaks. Leaks in a vacuum line cause a car to either run to lean or rich. This will negatively effect the performance of the car.
When running the AC what would cause the temp to go from cold to hot and the air flow to go from vent to defog for no reason?
A vacuum leak in the vacuum supply line from the engine can do that. Many vehicles use engine vacuum to operate the HVAC system. If there is a loss of vacuum to the system it will default to defrost.
