How do i remove the timing chain cover on a 2002 nissan altima

Question edited for clarity.
Question moved to model category.

Tech Feature: Cooling System and Water Pump ...

Underhood Service https://www.underhoodservice.com > tech-feature-coo...
Here's the factory procedure for replacing the water pump on a late-model 3.5L Altima or Maxima: 1. Drain the coolant out of the cooling system by opening ...

Nissan Altima Water Pump Replacement Cost Estimate

RepairPal https://repairpal.com > estimator > water-pump-replace...
The average cost for a Nissan Altima Water Pump Replacement is between $519 and $585. · Labor costs are estimated between $154 and $195 while parts are priced ...

Everything blocking the timing chain cover needs to be removed. THEN REMOVE COVER AND REMOVE OLD CHAIN making sure your cam and crank marks align. install new chain

Have to remove variable valve timing cover, alternator, ps pump, tensioner, a/c compressor, motor mount and bracket, upper and lower oil pan, crankshaft pulley. I just replaced my timing chain- Not a job for a beginner, took a VERY long time. Recommended to support engine and remove subframe but not totally necessary.

Check for any bolts coming up from oil pan into bottom of timing chain cover. If they are also removed, the cover may be stuck on with silicone, and just needs (gently) pried off.

i have take all the bolts that hold the timing chain cover on place but still don't come out does anyone have a diagram on how to

No timing belt. your Altima has a timing chain. No service necessary unless the chain is stretched out. I have seen just a hand full of those since they came out, so you should be safe. You will get the check engine light to come on with the p0335 cam position sensor to come on in few cases that I have seen and it was a stretch chain. other than that no real issues with timing chains.

you mean the cover? upper sprocket? why are you taking the chain off? the oil pan has to come off to get the lower cover off, its all part of the oil pump.

I think it has a chain. look where the timing chain/ belt should be. if there is a large plastic cover, it has a belt, it its a aluminum cover, it has a chain. there is no replacement interval on a chain.

yes

there will be a rattle the front of the engine. the end with all your pulleys and belts on. And it will be hard to work out if it's in the engine or the pulleys.

It is a common that a TICKING coming from the front of the engine is the timing chain guide.

This -->LINK<-- will help you alot.

Regards

Philip