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Code 128 on pontiac grand am - 2001 Pontiac Grand Am SE

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After replacing icm, coils plugs and wires, both crank sensors. 1996 pontiac grand prix finally started. It ran perfect for about 20 min. Then sounded like starve for gas. Now wont start. Plz help


Failed Fuel Pump Can Cause Engine to Stall : Pontiac ...

repairpal.com > Problems > Pontiac > Grand Prix
Engine Stall Or No Start Condition on Pontiac Grand Prix. The fuel pump may fail ...No codes thrown... The car finally died on 8th avenue and 30th street in Manhattan. ...1996 Pontiac Grand Prix- 3.1L V6138,920Visitor. My car just decided it ...

Nov 24, 2015 | Pontiac Cars & Trucks

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Pontiac grand am I had a diagnostic reading at autozone for diagnostic codes po128,po440 and p1189 don't know what they mean for a 2003 Pontiac grand am gt 3.4 liter and v6 engine vehical


PO128 -- engine coolant low or thermostat not working
P0440 - EVAP system malfunction, gas cap loose - Cat convertors missing from car can cause this
P1189 - Engine Oil Pressure Switch Circuit -- CAT CONVERTORS MISSING FROM CAR can cause this.

Jan 28, 2015 | 2003 Pontiac Grand Am

1 Answer

What is 1990 Pontiac trouble code 65


Type: OBD 1 & your codes

OBD1 GM Code 65

Nov 13, 2014 | 1990 Pontiac Grand Am

1 Answer

2003 grand marquis trouble code po 128. Heater works. 100 mile trips no problem. Temp gage below C. New sensor or new thermostat?


Well code 128 is for a thermostat problem in the fact the engine is not reaching normal temp. If you have heat the engine is warming up but still may not be getting to normal range. Normal is 190 - 210 degrees.
I would replace the thermostat first and see what happens.

Jan 24, 2014 | 2003 Mercury Grand Marquis

1 Answer

Changed battery 2002 pontiac grand prix and alarm keeps going off and vehicle won't crank


its a security feature from factory. Gotta take it to a pontiac dealer and get the reset code.

Apr 20, 2013 | 2002 Pontiac Grand Prix

1 Answer

Code po128 came up


Code 128 is for an engine that is not reaching normal temp, usually a thermostat problem.

Mar 02, 2013 | 2006 Pontiac Grand Prix

1 Answer

Obd2 code po 128


P0128 means that your engine thermostat is more than likely faulty. The code description is engine operation below thermostat regulating temperature.

Nov 22, 2012 | 2005 Pontiac Grand Prix

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My check engine light is on, and the code is P0420, it's a Pontiac Grand Am. What does the code mean?


Go to Advance Auto. They have free troubleshooting of engine codes. The techs there can give you a list of causes for the code based on your automobile.

Dec 23, 2011 | 2003 Pontiac Grand Am

1 Answer

I had air pressure sensor problems too.


you may need a new battery ...or the starter is gone ....have the starter rebuilt if it's no good

Jul 24, 2009 | 2008 Pontiac Grand Prix

1 Answer

Codes for a 1995 pontiac grand prix stereo delco


the best way to do this is u can call any pontiac delar close to your place and they will give you the code direct by enter some information to your car radio

Mar 15, 2009 | 1995 Pontiac Grand Prix

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