2003 Buick rendezvous speedometer and fuel gage are not working

SOURCE: 2004 Buick Rendezvous, speedometer fluctuations

Turns out this is a common problem for the Rendezvous.
I took it to a mechanic and after he tested to see if all the speed sensors were working with his handheld computer reader, (because there is no speedometer cable anymore) He reset the needle by turning the key about 25 times as far as possible without starting the vehicle. The speedometer needle came back a bit each key turn till it reached zero. It's been working fine since.

Greg Bernett

• 2993 Answers
• Posted on Oct 11, 2009

SOURCE: How to change the fuel filter in fuel tank 2006

3.4L & 3.5L Engines

1. Before servicing the vehicle, refer to the Precautions Section.
   
2. Relieve fuel system pressure.
   
3. Remove or disconnect the following:
   
   • Negative battery cable
     
   • Quick connect fittings at the inlet/outlet sides of the in-pipe fuel filter
     
   • Fuel filter mounting bracket nut
     
   • Fuel filter and drain any remaining fuel
     

1. Install or connect the following:
   
   • Fuel filter to the bracket
     
   • Fuel filter assembly to the side rail near the fuel tank. Torque the nut to 89 inch lbs. (10 Nm).
     
   • Inlet/outlet quick connectors to the fuel filter
     
   • Negative battery cable
     
2. Start the vehicle and checks for leaks, repair if necessary.
   

Testimonial: "Thank you for your reply, but my car is not the fuel filter in the fuel line underneath the body."

SOURCE: 2003 buick rendezvous power outlets

 Fuse #14 is for REAR auxillary power  outlet (in cargo area).  This is located in the INSIDE fuse box to the left of and under the glovebox (to the left of the front passenger's feet).
Fuse #32 is for FRONT Power Outlets/cigarette lighter//Lights, OnStar®  Fuse 32 is under the hood in the ENGINE AREA fuse box located in the compartment  just above the battery.DOUBLE CHECK YOUR MANUAL to make sure that your fuses are the same.  I have a 2003 Rendezvous. Your newer model may be different.  The diagrams for each fuse box can be found inside the lids of the compartments.

SOURCE: location of the blower motor on 2003 buick

I assume you mean the air conditioning blower motor. Its accessed by removing the panel in the floorboard of the passenger side, just below the glove compartment. Its up, and to the left.

SOURCE: The speedometer on my 2004

It could be a bad connection in the wires between the speed sensor and the Engine Control Module (ECM). Is the ECM setting a speed sensor code? It could also be a bad Instrument Panel Cluster (IPC) module. Are there any codes in the IPC? It could be a problem with the data line between the ECM and the IPC, in which case you will be getting "U-codes" out of your ECM. (U-codes indicate communication problems between the various modules in your car) A good scan of you vehicle's computer systems would be the best place to start.