What does the leak detection pump do on a car?
What does the leak detection pump do on a car?
The leak detection pump is the component that often triggers those “Check Engine” warning lights when it detects small leaks that would be hard to see.
Is the leak detection pump covered under the warranty?
Your car may still be covered under the five year/50,000 mile emissions warranty.If so, you should not have had to pay a penny for that repair since the leak detection pump (LDP) is an emission control device, as is the charcoal canister (also called the vapor canister). If they are bad, there should be no charge for repair or replacement.
What causes the Check Engine light to come on?
When your engine light comes on because of a weakness or failure in this system, you most likely won’t notice the car driving any differently. Everything will seem fine, except for the glowing check engine light on the dashboard. Missing or loose fuel cap. Incorrect fuel cap used. Evaporative (evap) emission canister or fuel tank leaks.
How does the leak detection system ( LDP ) work?
The leak detection system tests for EVAP system leaks and blockage. It also performs self-diagnostics. During self-diagnostics, the Powertrain Control Module (PCM) first checks the Leak Detection Pump (LDP) for electrical and mechanical faults.
What to do if your evaporative leak detection pump is bad?
Your mechanic will access and thoroughly inspect the evaporative leak detection pump, along with the rest of the Evaporative Emissions Control System. If the Check Engine Light has lit up and thrown a trouble code, a diagnostic check with a code scanner can pinpoint the general cause of the problem.
When your engine light comes on because of a weakness or failure in this system, you most likely won’t notice the car driving any differently. Everything will seem fine, except for the glowing check engine light on the dashboard. Missing or loose fuel cap. Incorrect fuel cap used. Evaporative (evap) emission canister or fuel tank leaks.
Can a bad leak detection pump cause a smog test?
A bad evaporative leak detection pump can cause your vehicle to fail a smog test. Many factors can cause a bad evaporative leak detection pump, but there is a single warning sign of a bad evaporative leak detection pump: Your Check Engine Light illuminates.
What causes an EVAP leak in an engine?
Here are Some Possible Causes for an EVAP Code or an EVAP Leak: Missing or loose fuel cap. Incorrect fuel cap used. Evaporative (evap) emission canister or fuel tank leaks.
