How do you reset engine light on jeep liberty diesel
From what I read in the manual it is the catalytic converter. A misfire that could damage the cat.
Bad sending unit
The engine computer controls the check engine light.
No, oil level does not cause the check engine light.
Not to my Konwing
what is this code p1491 on 2003 jeep liberty
It looks like a little yellow engine.
Some have a safety switch to prevent engine damage that cuts off fuel supply as soon as engine oil pressure drops to an unsafe level
Scan tool, will give you a trouble code as to why the computer turned the check engine light on.
The check engine light is reset with a scan tool after repairing the failure that caused the code.
The oil level will not cause the check engine light to come on.See related question below.The oil level will not cause the check engine light to come on.See related question below.
1) the engine oil level is low 2) the engine oil is old - making it very thin, especially after the engine warms up. Likely the oil light is doing its job and calling your attention to the level and condition of the engine oil.
The engine is overheating.
Check to coolant level in the coolant recovery tank and radiator when engine is cold
Have vehicle scanned to determine the problem
There are dozens and dozens of causes for the check engine light to stay on. You need to have the computer checked for codes to know possible causes.
The engine is overheating. The check engine light is not on because you have no problem with the emissions system which this light monitors.
get an engine diagnostic scan.
Have it checked for codes with a scan tool. There are pages and pages of causes for a check engine light.
Low fluid levels in engine.
Oil level or pressure will not trip a check engine light.
service engion soon light is on
disconnect your battery for 45 secs and reconnect