2003 Chevy Venture Alternator?

Hello

I have attached the info on rotating the engine and changing the alternator. Just be careful ensure things are braced and secured before sticking body parts in areas that can be pinched.

Safety first!

Rotating the Engine for Service Access

Tools Required
J 41131 Engine Tilt Strap
Remove the throttle body air inlet duct.
Set the park brake.
Shift the transaxle into Neutral.
Remove the engine mount strut bolts. Swing the engine mount struts aside.

Install the J 41131.
Pull on the engine in order to rotate the engine forward.
Tighten the J 41131.

REMOVAL PROCEDURE

Remove the battery ground (negative) cable from the battery.
Rotate and secure the engine forward to access rear generator bolts. Refer to Rotating the Engine for Service Access in Engine-3.4L.

Remove the generator B+ terminal nut.
Remove the generator B+ lead.
Remove the generator electrical connector.
Remove the drive belt from the generator.

Remove the generator front bolt.

Remove the generator rear bolts.

Remove the generator from the generator bracket and position the generator above the drive axle.
Remove the drive belt tensioner.
Remove the generator bracket.
Remove the power steering pipes from the power steering pipe retainer.
Remove the fuel pressure test port (schrader valve) cap from the fuel injector rail.
Remove the power steering pump and reposition the power steering pump in front of the timing chain cover in order to provide access for the generator. IMPORTANT: Do not disconnect the power steering pipes from the power steering pump.
Remove electrical harness from retainer on right fender well and position aside.
Remove the generator from the vehicle.
INSTALLATION PROCEDURE

Install the generator to the vehicle and position the generator above the drive axle.
Install electrical harness to retainer on right fender well.
Install the power steering pump to the engine.
Install the fuel pressure test port (schrader valve) cap to the fuel injector rail.
Install the power steering pipes from the power steering pipe retainer.
Install the generator bracket.
Install the drive belt tensioner.

Install the generator to the generator bracket and position the generator above the drive axle.
Install the drive belt tensioner.
Install the generator to the generator bracket.

Install the generator front bolt.

Install the generator rear bolts. NOTE: Refer to Fastener Notice in Service Precautions. Tighten Tighten the generator bolts to 50 N.m (37 lb ft) .
Install the drive belt.

Install the generator electrical connector.
Install the generator B+ lead.
Install the generator B+ terminal nut. Tighten Tighten the generator B+ terminal nut to 13 N.m (115 lb in) .
Rotate the engine rearward and install the engine mount strut bracket bolts. Refer to Rotating the Engine for Service Access in Engine -3.4L.
Install the battery ground (negative) cable to the battery.

Hello

Just as a note after I had sent you the information I did some other looking. You may have some recalls on your vehicle. The dealer may fix these for free. Please contact the dealer service department, give them the VIN number of your car and have them check on these to see if they apply to you.