20 Most Recent 2005 Pontiac Bonneville Questions & Answers


Stepper motor inside the insturment cluster is the problem . GM had bad ones 2003 to 2006 . Watch this video
How to repair GM Instrument Cluster Speedometer Gauge Stepper

2005 Pontiac... | Answered on Sep 06, 2017


The maximum battery voltage must be no more than 14Volts. Replace the voltage regulator. The alternator must have been OK to produce the voltage in the first place so you have possible wasted your money there.
The voltage when running should be around 13.6Volts fully charged.

2005 Pontiac... | Answered on May 28, 2017


48-56 psi...very common for fuel pumps...may have an access panel under the back seat some of the older buicks and Pontiac did

2005 Pontiac... | Answered on Nov 06, 2016


yes the fuse is name (cluster)

2005 Pontiac... | Answered on Feb 21, 2015


Sounds like the the clutch are wore out and will need a rebuild

2005 Pontiac... | Answered on Dec 12, 2014


Not fuses. It's a circuit breaker unser the hood.

2005 Pontiac... | Answered on Dec 06, 2014


The relay should be in the black fuse box under the hood. Or it could br in the eire harness . It just pulls out of the socket.

2005 Pontiac... | Answered on Sep 01, 2014


Frequent ignition module failure can be caused from an over-voltage condition from the voltage regulator. Check your charging voltage at the battery when the vehicle is running, and it should not be higher than 14.3VDC.

Also, improper jump-starting using a "booster" style jump-starter can cause an ignition module to fail. Did the failure occur after jump-starting? Try using a standard trickle-charger in the future instead of jump-starting your car from a booster, or simply use jumper cables attached to another vehicle or fully-charged battery.

Be sure that the voltage at the primary side of your ignition coil is no more than 6.5VDC. If it is, replace the ignition resistor.

2005 Pontiac... | Answered on Jul 19, 2014


Hi Randy, I'm glad to help!

Randy there are 2 main reasons that fuses keep blowing when you use the system that has the problem. In your case I would say either you have a pump motor that has a dead short OR the wiring running to the motor is shorted to the frame somewhere on the vehicle. I would first unplug the motor and see if the short goes away. If the short goes away with it unplugged then check all the wiring going to the motor if you find that the wiring is good, then replace the motor. Hope this helps and have an awesome day Randy.

2005 Pontiac... | Answered on Jul 12, 2014


hayne's make a manual to cover this step by step

2005 Pontiac... | Answered on Jun 20, 2014


Transmission bands are slipping and requires an trans inspection. Most trans shops will give you the inspection for free when you tell them your bands are slipping. This is a low cost minor adjustment that doesn't require removing the transmission unless further problems are discovered after the inspection. They will need to make this adjustment for a inside peak to make a proper determination.

2005 Pontiac... | Answered on Jun 18, 2014


When you say the trans fluid is fine, is it a clear reddish color? does it smell burnt? also does your check engine light come on at all? how many miles are on the car? GM usually recommends a trans fluid flush at 100k miles under normal driving conditions and at 60k miles under more severe driving conditions. it sounds like there may be an internal problem with the bands or the pressure may be low. I would recommend taking the car to GM dealer for a better diagnosis as it sounds like it will continue to slip when it gets to normal operating temperature and it will get worse in the future. another option is to add 2 bottles of Lucas trans fix (48 ounces total) to the trans fluid but you will need to pump out that much fluid if the trans fluid is already full so you don't over fill it. the lucas trans fluid additive does work pretty good unless their is serious internal damage already done. Good luck!

2005 Pontiac... | Answered on May 08, 2014


is it manuell or electric if its electric it will be the temp switch this turns it on and off depending on how hot engine is

2005 Pontiac... | Answered on Feb 22, 2014

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