I have a 2000 hyundai Sonata, 6 cylinder eng. My

Since the 4 cyl engine uses direct ignition, here is the info for the V6.
Standing in front of the car, the cylinders in front are 2-4-6 and the cylinders next to the firewall are 1-3-5.
The wires on the coil are 1-4-5-2-3-6. The actual firing order is 123456.

Vehicles Covered: Hyundai Sonata 2002-2004 (2.4L & 2.7L Engines)

In 2003, Hyundai produced two types of Sonata:
Available engines:
4 Cylinders 2.4L VIN "S", MFI DOHC - see Figures 1 and 3.
6 Cylinders 2.7L VIN "H", MFI DOHC - see Figures 2 and 3.

To differentiate between these types of 2003 Hyundai Sonatas, the VIN 8th digit (Engine Type) will either be "S" or "H" as in the table above.

To locate the Engine drive belt, jack up the vehicle & place it onto jack stands, then slide under the car (toss a cardboard mat down first), then, once under the car, remove the (plastic) engine splash shield. Once removed, the drive & accessory belts are easily observed.



Fig. 1 Accessory Drive Belt Routing 2.4L (4 cyl) Engine - Hyundai Sonata
The "COMPRESSOR" refers to the A/C compressor, and "GENERATOR" refers to the Alternator.




Fig. 2 Accessory Drive Belt Routing 2.7L (6 cyl) Engine - Hyundai Sonata
The Belt Routing on the Left is "With A/C", on the Right is "without A/C"

Inspection - Drivebelt and Accessory Belts

Inspect the drive belt for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. Worn or damaged drive belts should be replaced.

Drivebelt Removal & Installation - 2003 Sonata (2.4L and 2.7L engines)

Raise and support the vehicle.
Remove the engine splash shield.
Rotate the drive belt tensioner clockwise to release the drive belt tension.
Remove the drive belt from the alternator.
Slowly release the drive belt tensioner.
Remove the drive belt from the accessory drive pulleys.

To install:

Install the drive belt to the accessory drive pulley.
Rotate the drive belt tensioner clockwise.
Install the drive belt to the alternator.
Ensure the drive belt is properly aligned and seated into the grooves of the accessory drive pulleys.
Slowly release the drive belt tensioner
Install the engine splash shield.
Lower the vehicle.

Here's the best illustration I can find of the Hyundai 2.4L and 2.7L engines - the drivebelt seems to be located on the passenger side of both of these transversely mounted engines.



Fig. 3 Hyundai 2.4L and 2.7L engines - Underhood sensor locations 2002-2004 only

Glossary of Acronyms
---------------------------------
A/C - Air Conditioning
DOHC - Dual Overhead Cam
MFI - Multi-port Fuel Injection

My rule of thumb for Timing belts:
replace at 60,000 miles, and every 40,000 miles thereafter. Having said that, I often let
cars go until the timing belt starts showing signs of wear (usually every 50K - 75K miles)

But www.autozone.com (register free at www.autozone.com) is recommending for your
car driving in "severe driving conditions" (aka normal stop-start driving) that your 2000 Sonata
have:
60,000 miles - replace
90,000 miles - inspect for wear
120,000 miles - replace
150,000 miles - inspect for wear

The 155 page owners manual (I found one at the link below - you may prefer to try Hyundai)
makes no mention of the timing belt at all.

http://www.scribd.com/doc/29113477/2000-Hyundai-Sonata-Owners-Manual

My online Sonata manual shows these possibilities, but does not identify which applies specifically to 2000 Sonata.
Also, when you talk to the dealership parts counter, you'll need to know whether your 2000 Sonata is (a) 4-cylinder 2.4L MFI DOHC engine, or (b) 6-cylinder 2.5L MFI DOHC engine.
Its easy to tell - just count your spark plug wires.

-- begine excerpt from 2000 Hyundai Sonata Repair guide --

The crankshaft position sensor is located next to the flywheel.
The crankshaft position sensor is located next to the flywheel/torque converter.
The camshaft position sensor is located on the engine near the timing belt cover and under the upper radiator hose.
The crankshaft position sensor is located on the driver-s side of the vehicle, down by the lower radiator hose.
The crankshaft position sensor is located on the engine near the crankshaft pulley.
The crankshaft position sensor is located at the front of the engine near the timing belt.

--- end excerpt from 2000 Hyundai Sonata repai guide ---

Either the cruise switch you depress is at fault or the box withe the cables running from it to the throttle body is. It will need to be checked out if the fuse is good located in the fuse bos

BEST SOLUTION: Take/Tow your vehicle to an authorized Hyundai dealership and pay the diagnostic fee... they will tell you exactly what the problem is and the cost of parts/labor to fix it... at least this way you'll know what the problem is and what's required to fix it.

Autozone.com says that for this vehicle the firing order is 1-2-3-4-5-6 and the set-up is 2/1 4/3 6/5 meaning that the #6 cylinder is far right on the back. It goes #1 #3 and #5 in the front and #2 #4 and #6 in the back.

Go to http://www.hmaservice.com/ and register (vehicle by VIN). Afterward, you'll have access to technical information (manuals, wiring diagrams, service bulletins, etc) about your vehicle.

I had the same problem with my 2000 Sonata a couple of years ago. It was the crank sensor and once replaced, it solved the problem.

hi have a nice day!
http://hmaservice.com/viewer/dispimg.asp?path=/data/Passenger/HY/HMA/ENG/SHOP-images/HY-EF13-IMAGES-ENG/s9ee028a.gif