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What causes tappet noise in 2001 northstar engine when ...

Sent to Car Experts September 24 08:44 PM

What causes tappet noise in 2001 northstar engine when starting cold? The noise
goes away after engine runs several minutes.Is this normal for northstar engine?

 

Optional Information:
2001 Cadillac sedan deville northstar

Already Tried:
nothing

Customer (name blocked for privacy)
Status:  Closed   Value: $8
Info Request
September 24 9:05 PM (21 minutes and 16 seconds later)
         
REPLIED to Info RequestCheck Mark

Does the noise only occur after the vehicle has sat for days and then started or evey time it's cold?

What weight/viscosity oil is currently being used?

-Rip

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RIP -- Lead Technician -- 100% Positive Feedback on 2110 Car Accepts
A.S.E. Master Technician, Advanced Level, Smog - European, Domestic, & Asian -- Car Category Mentor
Reply
September 24 9:42 PM (37 minutes later)
         
Reply to RIP's Post: Rip

   I do not know at this time because I just looked at this 2001 Cadillac Sedan Deville at a dealer's lcation and have put a deposit toward the purchase.

                                Bob
Customer (name blocked for privacy)
Answer
September 24 9:55 PM (12 minutes and 55 seconds later)
         
ACCEPTEDCheck Mark

Bob,

The engine was most likely not ran for an extended period of time which is why the tappet noise appeared. Often at dealers the vehicle's can sit for quite some time before the engine's are ran, all the oil settles at the bottom of the oil pan and takes timne to lubricate the upper end. I believe you'll be just fine. Just remember the Northstar engine is a great design, but always keep up the regular oil services, sludge buildup from untimely oil changes can affect internal components greatly on these. Also, dependant on what the current milage is on this vehcile, you should consider an extended warranty which will cover minor to major repair work in the future. Premature component failure is not too common on these, but when it does occur parts and labor to work on this vehcile always are high and insurance that you won't have to pay much from your pocket is always reassuring.

-Rip



Please click on "ACCEPT" if I was helpful-or if you still need assistance just reply, before leaving any feedback thanks
Picture
RIP -- Lead Technician -- 100% Positive Feedback on 2110 Car Accepts
A.S.E. Master Technician, Advanced Level, Smog - European, Domestic, & Asian -- Car Category Mentor
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