Nissan maxima does have a chain and if the cover has broken it will be an expensive repair
items of concern are the chain, the cover, the sprockets for the cams and crank, the adjuster and the guide and valves ( it is not listed as an intereference engine but prudence suggests to expect bent valves)
I seriously suggest that you by pass the local garage and seek assistance form an accredited service shop that has experience in your make of vehicle as it is not a simple change the chain job.
get quotes first as the expenses can be double because of the extra damage incurred
SOURCE: Front End Noise in 2005 Nissan, Maxima
it would not hurt to check rear tire wear due to misalignment
cupped tires will cause a faulty bearing type noise or humming.
SOURCE: error code P0340
lionelloopho: P0340 is a Cylinder signal not getting to the ECM, momentarily while the engine is being cranked.
According to Nissan's diagnostic chart, the recommend checking the following: Harness connectors for the cam positioning sensor,
The sensor it self, The starter, for excessive draw.
The battery for weakness.
Nissan did have a service bulletin out on hard cranking problems.
The symptoms include difficult starting ans spark knock (very sharp rattling sound)
The bulletin reference number is: NTB95-090 You can check with Nissan because the solution warrants the replacement of the ECM.
You may have to tell a little white lie and tell them you have been living with the problem for quite a while because no one has been able to solve the problem and you have just now heard of this bulletin.
Good Luck and let me know how you make out, I'm pretty sure this is the solution.
SOURCE: no sparks from spark plugs in the 97 nissan maxima wont start up
This car has seporate coil packs for each cylinder, have you tried swapping the front bad one with a good one to see if they switch ?
The engine you just put in may have come with some blown coils.
Hope this helps
Sam
SOURCE: I have a 2004 nissan maxima. Everytime i start up
Simply remove the valve covers and adjust the lifters with the proper feeler guage.A cheap repair manual like Haynes will show you how to do this
SOURCE: 2004 Nissan Maxima RATTLING NOISE from ENGINE
I have a 2002 maxima with 75k mile and heard a rattling which died down after it warmed up.
It was a bad timing chain pulley. Don't wait too long before fixing that!
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