My 2004 acura tl navi starts with the acura logo screen then goes to a blank screen. Sometimes nag screen will come on after driving for awhile???? Any idea for a fix???

SOURCE: AC Not blowing inside of 2004 Acura TL

check the fuse and the relays for the fan motors.if thats ok check to see if it is vacuum operated controls and that none of the pipes are off or split.

SOURCE: 2004 acura Tl cruise control wont engage

This is a problem you will to take to a shop, If you are mechanically inclined I can help you, but if not I would not mess with it, it could be the button or it could be the controller and could even just be a fuse, check the fuse and if you don't find the fuse blown then let me know if you have a volt meter and what to test this yourself. You are going to be working around the air bag too and if you probe the wrong wire while testing you could break your arm or leg by deploying the air bag by accident. Or your neck.

SOURCE: Acura tl A/C stops working from time to time

There appears to be a dirty connection for the Interior Blower. When the Blower stopsdue to a circuit interuption this automatically disengages the A/c Compressor. My suggestion is remove any fuse and relay connected with the blower. Make sure the reinstallation is good. If no response, go to the blower motor multipin connector, do the same.Allthese items are located in Circuit boxes on the vehicle. Use the premis, what should it do, and why not.
Regards,DT

SOURCE: I have a 2001 Acura 3.2 TL headlight goes on and off

As with Laurenson 538, I have the same problem with my 2001 CL.

Should this problem with the 2001 Acuras be a recall issue? I, too, have replaced the headlight assembly ($1,000 plus). The old one (sealed[?]) had moisture in it... the reported cause of the light burning out. Within a short period, the $1000 replacement had moisture in it and has just burned out again.

Now, at a different Acura agency, I'm told that the bulb needs another $1,000 replacement. When I asked about the warranty, I was advised 90 days was the warranty. When I asked if I was expected to spend $1,000 every 90 days to be able to drive the car, the rep got defensive.
Writing Acura resulted in a big Zero. Before buying a new Acura, one might inquire about the headlights. Since one can't drive without headlights, maybe Acuras should be reserved for daylight driving only! Have a backup car for night driving!

SOURCE: replacing timing belt, water pump, on 2004 acura tl

My sincere apologies for the delayed response.
I have only been a free contributor to this site for the last 4-months.
I am personally going back to answer your unanswered questions.

I do not know if you still need this information, however I am answering it either way.

Click on the following direct Link. It has several Diagrams you will need for your Timing Belt replacement. Included are the Cover Bolt Locations, Tool Needed and Marks for your specific engine.
You may also want to Print out these Diagrams for future use.

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

Again my apologies...

http://www.2carpros.com/car_repair_information/year/2004/make/acura/model/tl/2004_acura_tl_timing_belt_diagram_marks.htm