Question about 2004 Oldsmobile Alero

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Cranks has fuel pressure and spark, no start just replaced ign switek for no spark problem 04 olds alero 3.4L

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  • Oldsmobile Master
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TRY THIS PROCEDURE WITH IGNITION ON WITH KEY IN SWITCH.LEAVE SWITCH ON POSITION WITH ENGINE OFF. FOR TEN MINUTES WATCH THE SECURITY LIGHT IF IT TURNS OFF IN TEN MINUTES.TURN OFF IGNITION SWITCH FOR 5 SECONDS THEN TRY STARTING DO THIS PROCEDURE TWICE.IF CAR DONT CRANK THE DEALERSHIP HAS TO REPROGRAM NEW KEY AND IGNITION SWITCH.

Posted on May 12, 2010

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Posted on Jan 02, 2017

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1 Answer

We bought a 1992 pontiac bonneville, 65,000 miles on it. Changed spark plugs and new battery. Changed the IGN Module and IGN coil. Still doesn't start.


Make sure battery has a full charge. If it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure and fuel injector pulse.
Any applicable trouble codes? Your obd1, you should be able to check some codes, yourself, if there are any.

Apr 30, 2017 | Pontiac Cars & Trucks

1 Answer

2002 Old ALERO drove home find didn't start later turned over fine but didn't fire replaced fule pump about 2 months ago


Pull a plug wire , set the end close to the engine, crank it and watch for spark. No spark could be the cranks sensor, wires, ignition module , fuse, or PCM. Have the codes read. Could be the fuel pump too. I have had them die shortly after installs.

Aug 28, 2016 | 2002 Oldsmobile Alero

1 Answer

2004 olds alero. new fuel filter and plugs. still wont start.


Did you check for spark at any ot the spark plug wires/ coils? If there is, check for fuel pressure at the fuel rail. Take the port cap off and connect a fuel pressure gauge. If one is not available, with a pocket screw driver deppress valve at port and observe if fuel pours out. If no fuel comes out at all, check your fuel pump circuit. Check for good ground and power at fuel pump connector. If power/ground are ok, replace fuel pump. If spark and good fuel pressure is present, there is the possibility of engine mechanical issues(jumped) timing chain). Also, a plugged catalitic wont let engine start but its very unlikely thats your problem. Start with your basics: spark, fuel, engine mechanical and catalitic.

Feb 07, 2016 | 2004 Oldsmobile Alero

1 Answer

Does a 99 alero have a chip my car won't start?


If it cranks good but won't start, have a helper crank it, while you visually check for spark at the spark plugs. If spark everywhere, use a fuel pressure gage and check proper fuel pressure. Also, check for fuel injector pulse, engine cranking. Those are basic tests.

Can you check for applicable trouble codes? To check codes, yourself, at the least, you need an obd2 code reader.

Jul 22, 2015 | Cars & Trucks

1 Answer

My 89 jeep cherokee won't. Start it will turn over


what motor? is the coil producing spark?? If so, check the fuel pressure, if the fuel pressure is low drop the tank, repace the pump and also replace the filter (located on the frame forward of the tank). If the coil is not producing spark, check for shorts or opens in the circuits as well as the IGN fuses. If there is NO fuel pressure at all check the fuel pump fuses and make sure the fuel pump is plugged in and there are no opens in the circuit

Apr 07, 2012 | 1989 Jeep Cherokee

1 Answer

1999 olds alero---cranks strong but wont start---n gas needle goes to empty when turn key to on position


check fuel pressure.sound like fuel pump not working.fuel pressure should be 41 - 47 psi. if not replace fuel filter, still too low pump faulty, if you not getting fuel pressure, pump still not working check fuel pump fuse and relay.code scan car first look for fault in pcm.it controls the fuel pump relay and fuel pump.

Mar 08, 2011 | 1999 Oldsmobile Alero

1 Answer

I am working on a 1999 olds alero that wont start just rolls over . The security light is not flashing. I have changed out the ign, & the crank sensor. I started once then i stut it off & tryed it...


IF YOU REPLACE CRANKSHAFT SENSOR IT HAS TO HAS TO BE RELEARNED USING TECH 2 SCANNER.FOR THE IGNITION KEY REPLACEMENT.TURN IGNITION SWITCH TO THE ON POSITION FOR 10 MINUTES WITH ENGINE OFF.WHEN SECURITY LIGHT TURNS ITSELF OFF.THEN YOU TURN OFF IGNITION SWITCH FOR 5 SECONDS.THEN START THE ENGINE.

Jan 20, 2011 | 1999 Oldsmobile Alero

1 Answer

Cranks but wont start? unplugged return line from


No that would stop the spark you said you have. fuel flow anf fuel pressure are to different things. did it flow or really blast out of the line?

Aug 04, 2009 | 2000 Honda Civic

1 Answer

My 1993 Olds 88 wont start cranks but wont kick over. Fuel prob


3.8 are known for ignition trouble but first use the fuel release valve located on top of engine under a screw cap to see if your getting fuel. It takes 4 things to make engine run fuel spark air and compression. But most likely the Ign control module or crank sensor. So try this
1) check the fuel pressure
2) check for spark
3) compression test

Apr 26, 2009 | 1988 Oldsmobile Delta 88

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