20 Most Recent 2003 Pontiac Grand Am - Page 3 Questions & Answers


You need to figure out what your heater thermostat valve looks like... locate it & replace it... (or figure out why it is not working).

Blend door/baffle... control solenoid.. whatever!!

At rock auto (below)...

Also check out BBB industries for your wiring diagrams...

http://www.rockauto.com/en/catalog/pontiac,2003,grand+am,3.4l+v6,1410994,heat+&+air+conditioning

BBB Industries Premium Alternators Starters Power Steering Products

2003 Pontiac... | Answered on May 25, 2016


Not a mechanic issue. The problem is the flasher relay is constantly active. The reason you don't have the indicator on is the switch isn't turned on.

2003 Pontiac... | Answered on Apr 27, 2016


Its telling you there's something wrong Tom!!
Look under the hood and do your drivers checks. Is there water in the rad header tank?
Is there oil in the engine?
Is the fan belt in good condition and tight?
When it runs is fluid dripping underneath?
When was it last serviced?

Have a good check around and get back to us.

2003 Pontiac... | Answered on Apr 24, 2016


Well now.
You have a "tiger by the tail".
I looked them up, and it looks like to you have 2 long steel shafts or bars that go across the inside of the trunk, that provide torque to balance the weight of the trunk lid
. You will change them out when they break.
You might do it once, and may decide "never again!"
I have done these several times, and will share this:
The job is quite dangerous, because you are working with "loaded" spring steel.
If you make a mistake, it can hurt you really bad, even to breaking a bone or losing a finger or even your eye.
Also, if one breaks, and your replace it, the other one may also break soon.
Having said that, God bless your efforts.

2003 Pontiac... | Answered on Apr 11, 2016


On most vehicles today there is none and the way mechanics do it is by loosening off the bottom hose to drain the coolant out.

2003 Pontiac... | Answered on Mar 05, 2016


My knowledge of the Pontiac Grand Am series vehicle prompts me to question the maintenance and upkeep of your vehicle. There are three things that come to mind when a vehicle will not go past a certain speed:
1.) routine oil changes; an experience I had with a stick shift vehicle was due to a small oil leak that caused the RPM to not go as high as too little oil was being detected and the car wouldn't go over 50 mph.

2.) restricted gas flow can also limit the ability to accelerate and achieve normal speeds under normal circumstances. Spark plug gaps and type can also play a role in this issue as well as the spark plug wires.

3.) built within the computer for the cars' electronics is a governing chip which, depending on where you live and what the car may have been exposed to(like someone trying to jump the car off and crossing the polarity) could have either modified the programming on the chip or the main board itself may have sustained liquid or other substantial damage.

I would rule out the first two before trying the third. I would verify the oil and gas pumps are working properly before going to three. I live in a small city and I am the only "known" person that works on and repairs these type boards. The sad thing is there are a few that are just not repairable. The third also requires you to take out the passenger side seat to get to the housing for the main board and also requires special tools to get it out so, if you have verified the integrity of the pumps, plugs, and wires then it will most likely be the main board.

I don't recommend this but there are several mom and pop garages that have the hand-held computer to reset the board but, if it is damaged, the reset could cause the car to become non-usable.

Hope this helps.

2003 Pontiac... | Answered on Feb 03, 2016


Looks like a car alarm feature not ignition problem.
When my vehicle is flashing and will not start I have to push my key fob unlock button. Do you have a key fob?

2003 Pontiac... | Answered on Nov 27, 2015


Bad controller ,blend door,actuator,heatcore

2003 Pontiac... | Answered on Nov 21, 2015


Are both heater hoses hot ? Cooling system full ?

2003 Pontiac... | Answered on Nov 17, 2015


You can get access to the full owners' manual here (
http://www.vadengmpp.com/owners-manual/pontiac/2003-Pontiac-GrandAm.pdf ) Per the instructions on pages 3-38 and 3-39 (pages 145 and 146 of the .pdf), 'press and hold the HR or MIN button for 2 seconds. Then press the HR button until the hour is correct, then press the MIN button until the minute is correct. There are further instructions on page 3-39 to have the radio synch times with FM stations that have Radio Data Systems.

Good Luck!

2003 Pontiac... | Answered on Nov 13, 2015


usually with a new one . suggest you buy a repair manual and read up on that task before you undertake it

2003 Pontiac... | Answered on Oct 20, 2015


Normally we would start by changing the least expensive item and work up from there thermostat======waterpump .if it were freeze plug there would be no fluid left

2003 Pontiac... | Answered on Sep 21, 2015


Sounds like it is feuding check your injectors

2003 Pontiac... | Answered on Sep 20, 2015


While driving in first gear it jerks or when you engage first gear it jerks ? Please clarify ! If the first ,sounds like a misfire ! spark plug ,plug wire , !

2003 Pontiac... | Answered on Aug 20, 2015


a diagram for what system. what is it specifically that you need a diagram for.

2003 Pontiac... | Answered on Aug 20, 2015


Swapping the brake pads is not a good idea. The one that wore badly indicates a sticking caliper. The noise coming back shows it is still sticking so replace it, turn the rotors and install new pads.

2003 Pontiac... | Answered on Jul 27, 2015


This is for a 2.2L engine. May not make a difference but if it is incorrect please let me know.

25769105-cixqw12rkpkyukark0skpttp-2-0.gif

25769105-cixqw12rkpkyukark0skpttp-2-2.gif

25769105-cixqw12rkpkyukark0skpttp-2-5.gif

25769105-cixqw12rkpkyukark0skpttp-2-9.gif

25769105-cixqw12rkpkyukark0skpttp-2-14.gif Regards,
-Tim

2003 Pontiac... | Answered on Jul 02, 2015

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