20 Most Recent 2006 Pontiac Grand Prix - Page 9 Questions & Answers

when you have that problem , almost all the time is the heater core clogged , you can have the engine running until reach normal temperature and touch both heater hoses at the fire wall, if one is hot and the other is not them the problen is your heater core.

• michaelsciarIF YOU HAVE THE TRANSMISSION APART, 2 THINGS YOU CAN DO, FAST BUT COSTLY REPLACE THE HARNESS, PART NUMBER 24229643 OR FIND THE TAN WIRE (1) FROM THE TCC LOCK UO SOLENOID, TAN, FOLOW THE WIRE, IT GETS RAPPED ON A BRACKET FOR A SENSOR, AND THE WIRE COATING GET SHAFTED AND GROUNS THE WIRE, UNPLUG THE HARNESS FROM SOLENOID AND REPAIR, USE A SMALL PEACE OF HOSE TO PROTECTE IT FROM DOING THE SAME THING LATER. GOOD LACK. Apr 14, 2014
• michaelsciarIF YOU GO TO A TRANSMISSION SHOP LIKE AAMCO, THEY WELL SELL YOU A TRANSMISSION !! Apr 14, 2014

1. Using a scanner, turn the Key On Engine Off (KOEO). 2. Check for a baro reading from the AIR pressure sensor of about 100 kPa (or 14.7 PSI) 3. Start the engine, turn on the air pump and the AIR control solenoid valve. This will measure the pressure from the air moving through the system into the exhaust. Expect to see 8-10 kPa higher than the KOEO kPa reading (or 1.16 to 1.45 PSI higher than KOEO PSI reading). 4. With the engine running, turn on the air pump, but shut off the AIR control solenoid valve. (This is basically a dead head test of the air pump). Expect to see 15 to 22 kPa above the KOEO baro reading (or 2.18 to 3.20 PSI above the KOEO PSI reading).

The axle nut is 118 ft lbs
The other 3 bolts are a 75 ft lbs

I'm having the same problem right now. I replaced the bulbs still didn't work. Checked all fuses and they were all good. Replaced the relay and they worked for about 20 mins. What could be causing the relay to go bad so fast or whatever?

It is not a trouble code it is a system code, such as it did not receive a signal from something. Trouble codes start with a P

your sister damage your car ....... no ...... have to retrieve ABS faulty code first

Mine was caused by a fuse, in which I was told to take it to installer of system to replace, or warranty was void.

Put a professional scan tool on it & see what I/M Monitors haven't run yet,maybe they never fixed ALL the issues I fault the shops for giving you back a car they know won't be accepted at inspection & expect you to drive it forever & it be your problem I road test all vehicles with scan tool software for 50 miles if have to, until the 8 monitors run clear & it WILL pass inspection

have a pressure test done so that you can see where it is leaking from.. If it is in the side of the block it may be a rusted welsh plug. Check inside the car for a leaking heater core and hoses . Check the drain hole under the water pump as it may be leaking from that hole while the pump is running ( water pump seal)

The engine oil filter should be round and on the passenger side of the engine. The trans filter should be inside the transmission oil pan. Are there numbers on the filters you are looking at ??

Spark plugs,wires and injectors, have nothing to do with your problem

PO303 is a misfire on cylinder #3
You may have an individual cylinder coil for that cyl or a coil pack for
several cyl,don't know the engine you have.

You may also have other issues that are causing the shaking