20 Most Recent 2003 Pontiac Bonneville - Page 4 Questions & Answers

You may gave a collision sensor somewhere that is in the process of going out. If you have access to an OBDC reader that also detects airbag functions you can easily determine which one. Getting a replacement for it is a different animal, though.

Is the SES light on?

First, is the security light staying on or flashing ? You have a problem with the chip in the key or the security system if it is. Otherwise, you need to know if you have battery power at both terminals on the starter when the key is in the start position. One possible cause is the neutral safety switch.

could be fan motor, motor fuse,fan switch need more info???? to help

If you change the gear oil in the transmission using a lighter weight oil will solve your problem.

What was done at the dealership that lead them to believe that they fixed it?

I am having the same issue with my 2003 bonneville. Changed out the control switch, no difference. Changed out wiper motor, still no difference. Seems that the problem may be on the wire for the delay. There is a constand 2.5 voltage when the switch is in the off position, cause the wipers to run intermitently. The wipers will run more often if you rev the car engine and increase the trace voltage. A wire is going to be added to bypass the bad wire in the harness. Crossing my fingers, hope this works.

There 4 bolts that hold the seat track to floor board. remove seat turn over and you can see the bolts that hold the track on remove them. now follow the material down to seat base this is a plastic roll over clip they should pull straight out remove cover to access heat element reassemble.

No Problem

Can be. You should look in your manual to see what's recommended for your vehicle.

yellow handle at the back of the motor

It could be plugged injectors. Buy some injector cleaner and run it through a full few tanks of gas to see I fit helps.

Whom ever replaced the sensor, must havedone so, based on the code & not on testingto find out why the code was set.Codes do not tell you what is wrong or to replaceany parts.My advice would be to find a shop that is the best aroundat diagnosing vehicles,I wish I could give you a guide & questions to ask in your search but I can'tYou will have to ask other people where they go to& what type issues they had & the shops can resolve.On a vehicle 10 years old & for those who never change theiroil on a new vehicle & that includes most people,you could havemechanical problemsA sensor reports an out of range condition,so if you have nowiring issues or other sensors pulling that one down,mechanicalissues are a good place to lookThe way to do that is using an oscilloscope & the propersoftware,& not every shop has that-- shall we say equipment,knowledge & skill level.Use your codes & Google them & your vehicle & look for known issues with whatever motor you have.

Vent valve,

may be traction control system have some problem, you can take a obd2 code scanner to have a check.