2 things

[Aren Jay]

.............

[fastblackmerc]

1. What does engine knock sound like?

I have when the engine is cold a very quiet thump thump thump sound I don't know if it is from the engine or exhaust. It only happens when the engine is cold and goes away when warmed up, 5 - 10 minutes.

I can only hear it on idle as road noise, engine noise and wind noise covers it up.

After 5-10 minutes I popped the hood and couldn't hear anything thumping around the engine at all.

2. I have a lazy power door lock/unlock. The rear passenger door does not unlock on the 2nd unlock on the remote. If I repeat it it will unlock. Also sometimes the keypad on drivers door (outside) will not unlock the door either. (on first try pressing button 3/4) Reenter code and press 3/4 and it works fine. Sometimes when I'm starting out it also makes a grinding sound when it auto locks.

Works fine by hand.


Any ideas?

Buy another car............

[Dr Caleb]

1. What does engine knock sound like?

I have when the engine is cold a very quiet thump thump thump sound I don't know if it is from the engine or exhaust. It only happens when the engine is cold and goes away when warmed up, 5 - 10 minutes.

I can only hear it on idle as road noise, engine noise and wind noise covers it up.

After 5-10 minutes I popped the hood and couldn't hear anything thumping around the engine at all.

2. I have a lazy power door lock/unlock. The rear passenger door does not unlock on the 2nd unlock on the remote. If I repeat it it will unlock. Also sometimes the keypad on drivers door (outside) will not unlock the door either. (on first try pressing button 3/4) Reenter code and press 3/4 and it works fine. Sometimes when I'm starting out it also makes a grinding sound when it auto locks.

Works fine by hand.

Any ideas?

1) Like a midget with a small silver hammer. It's probably just something not sealing when it's cold. '04s have dual knock sensors, so it's probably nothing.

2) a little white lithium grease on the mechanics. The door cover comes off with a couple screws, open it up and apply grease to moving stuff till the noise disappears.

[hot-rauder]

Aren, you have dual knock sensors, so you should be fine..... If it was serious it would be more of a ticking noise.... Thats what I had, twice.

[Aren Jay]

..........

[GetMeMyStogie]

Reenter code and press 3/4

You shouln't need to re-enter the door code. You have 5 seconds to press 3/4 and/or 5/6 as many times as you wish. Sometimes a passenger is too eager, and pulls the door handle before they unlock, kinda 'missing their chance' - hit 3/4 repeatedly until it unlocks.

[Baaad GN]

Hmmmmmmmmm sounds baddddd!