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Matt
Matt, Engineer
Category: Car
Satisfied Customers: 21253
Experience:  Honors degree in Mechanical Engineering, worked 8 years as a Formula 1 engine engineer.
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Landrover Discovery 2 with Service Engine Light on. Engine

Customer Question

Landrover Discovery 2 with Service Engine Light on. Engine has tappet noise and gets worse under load. Accelerating and going uphill makes more noise. Engine recently rebuilt.
JA: Do you have the trouble code? Do you have a code reader or scan tool?
Customer: No
JA: Not a problem. You can work with the Mechanic to figure that out. What year is your Discovery?
Customer: 2003
JA: Are you fixing your Discovery yourself? What have you tried so far?
Customer: No
JA: Anything else you want the mechanic to know before I connect you?
Customer: N SUV has 150k
Submitted: 8 months ago.
Category: Car
Expert:  Matt replied 8 months ago.

Hello

I'd begin by checking the state of the engine oil pressure so I'd 1st suggest measuring the actual oil pressure with separate mechanical gauge - this can be plumbed into the engine via the current pressure switch port - i

if this is all OK and the oil pressure is at least 1.3Bar ( 20psi) at hot idle then its possibly a sticking tappet or a leaking exhaust as these can sometimes make a tapping noise with a gas leak at the manifold joint

Expert:  Matt replied 8 months ago.

Hi

do you still need help?

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