2002 pontiac grand prix engine 3.1 l v6 se pluging the coolant tank

Whichever one you buy, it's an investment that will pay for itself many times over. The price difference depends on whether you're buying a non-professional technician grade tool or a professional technician grade tool. In all of the GM 3.8L V6 equipped vehicles, GM was kind enough to put a Schrader valve on the fuel injector rail where you can tap into the fuel system and check its performance with a fuel pressure test gauge.Ī fuel pressure gauge can cost you as little as $40 (US) or as much as $200 (US). All vehicles now use an electrical fuel pump to deliver fuel (under high pressure) to the fuel injectors and the best way to diagnose this fuel pump is with a fuel pressure gauge. Owning a fuel pressure gauge is now becoming a must. Which And Where To Buy A Fuel Pressure Gauge You've sprayed starting fluid (or carburetor spray) into the throttle body and your car (or mini-van) started, even if only momentarily.Īlthough the above list is a not a very complete list of symptoms, the theme that runs thru' them, and any other related symptom, is that the engine will crank and crank, but not start.You've done a fuel injector Noid Light test and all of the fuel injectors you tested are getting their activation signal.So you know that the ignition system is not at fault. All of the coil packs, sitting on top of the ignition control module (ICM), are creating and delivering spark to the spark plugs.Well, there are a few other specific symptoms you'll see. I mentioned at the beginning of this tutorial that a bad fuel pump will cause your 3.8L equipped car or mini-van to ‘crank but not start’. You'll be able to accomplish both tests, indicated in this article, without any unhappy consequences, if you're careful and use common sense.

Take all necessary safety precautions and stay alert. IMPORTANT: Gasoline and starting fluid are extremely flammable! Be very careful. You can find this tutorial in Spanish here: Cómo Probar La Bomba de Combustible (GM 3.8L) (at: ). FUEL PUMP TEST 2: Using Starting Fluid.FUEL PUMP TEST 1: Fuel Pressure Test With Gauge.Which And Where To Buy A Fuel Pressure Gauge.

2002 pontiac grand prix engine 3.1 l v6 se pluging the coolant tank