Question about Pontiac Grand Am

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2005 GRANDAM GT CRANKS BUT WONT START - Grand Am Pontiac Cars & Trucks

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Well, there are several basics your engine needs to start: Spark, fuel, compression, and correct valve timing. I am going to assume on good faith that your GT has the 3.4 liter V6. Here are a couple basics on checking fuel and spark:
GM usually puts a schraeder valve (looks like a tire air valve) on the fuel rail. This is where you connect a fuel pressure gauge to test the fuel pressure. It should be 52-59 PSI when you turn the key to run.
If your fuel pressure is good, remove a spark plug wire from one of the front 3 spark plugs. If you have a spark tester, connect it to the removed plug wire. If you don't have a spark tester, remove the spark plug. Plug the removed spark plug or tester into the plug wire. Touch the metal threads of the plug or tester to a good solid metal part of the engine using gloves or non-conducting (plastic) pliers. Have someone try to start the engine. Watch the gap at the end of the spark plug. You should see a bright blue/white spark and hear it snap every time it fires. If you don't, there may not be any spark getting to the engine. Diagnosis of the problem can be far trickier from here on out. You will need to be able to diagnose electrical problems in the fuel/ignition system to find the root cause of no fuel/no spark.

If you cannot hear the fuel pump run in the tank when you turn the key to run, try lightly rapping the bottom of the fuel tank with a hammer turned to its side (don't put a hole in your fuel tank!) while someone cranks the engine over. If the engine starts, most likely cause is a failed fuel pump. Don't expect the car to keep starting on a regular basis if it does start by hitting the tank. The fuel pump will need to be replaced.

Posted on Oct 20, 2013

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Posted on Jan 02, 2017

cincinaty5
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SOURCE: i changed the instrument panel in my 97 grandam gt

while installing the pannel you must have jarred or unplugged a connector . look around the top and side of the steering colume .

Posted on Aug 28, 2009

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I changed the instrument panel in my 97 grandam gt


while installing the pannel you must have jarred or unplugged a connector . look around the top and side of the steering colume .

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