I have a 3.1 liter Grand Prix and it says low oil and after that all the light lit up and it tried to shut down on me, what's going on?

Asked by Apr 08, 2014 at 01:28 PM about the 2002 Pontiac Grand Prix SE

Question type: Maintenance & Repair

5 Answers

4,505

The low oil light comes on before anything else when the car is about to stall. All the other lights come on with the key on + engine stalled. You'll need to get the OBD code to trace what's going on. Get the car to PepBoys or Autozone, they will read the code for free. Take it from there - either find a mechanic or post the code here and maybe someone can point you in the right direction.

It doesn't have a check engine light on an isn't throwing any codes however it stalls and will not start most of the time unless I pump the gas. I unhooked a lot of the sensors just to see if it would throw a code for kicks and the light never lit up. Also the security light is on while its running which is also new.

4,505

If you got no codes with the sensors disconnected, it's possible that the ECM is bad. But before going that route, check the following: ISC - Idle speed control system (check for gummed up idle valve), low fuel pressure, vacuum leak (especially EGR). These can cause intermittent stalling or rough idle along with hard starting, but the engine will run fine at speed. You will need a special scan tool to run a proper idle speed control test, one that sends the vehicle-specific command to increase idle speed. If you don't have this, try turning on the A/C to the maximum setting, with the car idling. If you don't get an increase in RPM, the ICS is bad.

Okay, now I had replaced the original motor with a different 3.1 out of an 02 Buick century. Are the ECM's different?

4,505

Yes, there are variations in the ECM, mostly for the different vehicle weights and different trannys these popular engines were mated to. If the ECM is the one that came with the engine, you should be okay. It might affect performance or gas mileage, but I don't think it would affect the idle. If you kept the car's original ECM and hooked it to the new engines sensors, however, that could sure be a source of miscommunication.

Your Answer

Add photo

Related Questions

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 3,715 nationwide Grand Prix listings starting at $1,100.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 3,980
#2 Tom Demyan
Tom Demyan
Reputation 2,660
#3 munron
munron
Reputation 2,070
View All

Related Models For Sale

Used Chevrolet Impala
792 Great Deals out of 34,371 listings starting at $799
Used Pontiac Bonneville
5 Great Deals out of 653 listings starting at $1,599
Used Chevrolet Monte Carlo
15 Great Deals out of 1,658 listings starting at $2,000
Used Pontiac Grand Am
1,644 listings starting at $1,995
Used Chevrolet Malibu
1,007 Great Deals out of 85,655 listings starting at $1,995
Used Ford Mustang
363 Great Deals out of 44,352 listings starting at $1,000
Used Chevrolet Camaro
283 Great Deals out of 38,314 listings starting at $1,250
Used Nissan Maxima
345 Great Deals out of 25,215 listings starting at $1,400
Used Honda Accord
814 Great Deals out of 81,559 listings starting at $899
Used Nissan Altima
1,088 Great Deals out of 82,556 listings starting at $670

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
13 Great Deals out of 462 listings starting at $1,200
2007 Pontiac Grand Prix For Sale
5 Great Deals out of 542 listings starting at $3,250
2006 Pontiac Grand Prix For Sale
8 Great Deals out of 605 listings starting at $1,999
2005 Pontiac Grand Prix For Sale
451 listings starting at $5,900