Question about 2002 Oldsmobile Alero

1 Answer

Won't start `cranks, good fuel pressure, good voltage to coil, so whats the problem /

Posted by on

  • 2 more comments 
  • Tammy Rogers Aug 21, 2008

    it cranks for a few then it starts

  • clydeturner Sep 01, 2008

    I checked the fuse box under the hood and it's actually missing. Will that be the problem? What effect does it have on the starting system.

  • Anonymous Sep 24, 2008

    we have the same problemwith our car leave the key in the on postion and it works again but a mounth later it happens again.we took it to the dealer and the said SORRY nothing we could do about it

  • yadayada
    yadayada May 11, 2010

    Ah does it have spark, remember the engine needs 3 things, fuel, spark to light the fuel and air, of course that is a very simple explanation. Anyway check the spark and the ignition timing, run a scanner on it to check for trouble codes. What is the fuel pressure reading??

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Don't know

Posted on Aug 21, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

Need to know why won't get no spark...changed ignition module, ignition coil, cap and rotor still not firing. ....any ideas


What make vehicle ? year an model too ! Before you replaced those parts did you check for battery supply voltage an check the ground for those components ? You need to get a wiring diagram an see what get's voltage an what is ground ! An see what all is involved , crankshaft position sensor , ECM / PCM -engine computer etc...! Then you need a DVOM - digital volt ohm meter to test ! Your looking for a quick fix an doesn't work like that !

Sep 06, 2015 | Cars & Trucks

2 Answers

No spark ferom coil


Probable Causes: Fuel Pump (P0230 to P0233) PCM (P0600 to P0606) Crank Sensor (P0355 to P0399) Fuel Pressure (P0190 to P0194) Chances are the Check Engine Light is not on, but you may find any of the following codes: P0230 to P0233 Fuel Pump codes P0600 to P0606 PCM related codes P0335 to P0339 Crank Sensor codes P0190 to P0194 Fuel Pressure Sensor codes No spark due to a bad crank position sensor, a faulty ignition module or PCM, a problem in the ignition circuit (ignition switch, antitheft system, wiring, etc.), a faulty park/neutral safety switch, a bad ignition coil (only on engines with a single coil ignition), or wet plugs or plug wires (did it rain last night, did you just wash the engine?) A less common cause is a worn starter that draws so many amps while cranking the engine that there's not enough juice left to adequately power the ignition system and fuel injectors. Contributing factors might be a weak battery and/or loose or corroded battery cables. No fuel because of a dead fuel pump, bad fuel pump relay, blown fuel pump fuse, plugged fuel filter or line, or failed PCM injector driver circuit or injector power supply relay. Or, the fuel tank might be empty (don't believe what the gauge is telling you), or the fuel tank might contain contaminated fuel (water or too much alcohol) or the wrong type of fuel (whoops, somebody put in diesel instead of gasoline). No compression because the timing belt or chain is broken, the timing belt or chain is loose and jumped out of time, or the overhead camshaft has snapped.

Dec 20, 2013 | 2000 Hyundai Sonata

1 Answer

97 jeep grand cherokee stopped running.turns over but won't start


You don't have enough info yet in your story to blame the computer.
You say you have fuel pressure. Do you have spark at the plugs ?
Voltage at the coil ? Voltage and ground pulse at the injectors ?
Did you check the ASD relay ?
The crank sensor on most Jeeps is usually where the engine and trans meet. Is that the sensor you replaced ?

Sep 10, 2012 | Jeep Grand Cherokee 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

1992 mx-3 v6 won't start. will hit sparaticly as if about to start but just won't catch. checked crank pos. sensor. need suggestions on how to proceed.


Check for a blue snapping spark on 2 or 3 plug wires(or all of them). If you get good spark, then ignition is likely not the problem. A weak or sporadic spark could be a bad coil or coil pack, or a bad ignition module (the ignitor).Check the coils with a volt-ohmmeter per the specs for your car. The ignitor can be tested at a parts store.
If spark is good, check fuel filter, fuel pressure, check timing marks on crank pulley and cam marks, Try a little starting fluid in the air intake and see if it runs for a moment. If so, then it's likely a fuel delivery problem. If no change, then it's likely an ignition circuit problem.
Good luck.

Dec 30, 2011 | 1992 Mazda MX-3

3 Answers

How do you test the fuel pump relay on a 1991 Toyota Celica 1.6 Car just died and won't crank. We changed the ignition coil and still won't crank. Fuel pump is working. Toyota place does not check...


If the car will not crank then you have a battery, cable or starter issue. If the car will crank but not start then the problem may be the fuel pump relay. There should be an electrical diagram on the side of the relay. Apply 12v to either side of the coil and you should here a click. Then check for continuity between the other two terminals with voltage applied. If you have no continuity then the relay is bad.

Aug 30, 2011 | Toyota Celica Cars & Trucks

3 Answers

My 2003 ford focus se.sounds like it wants to start but wont.is that my fuel pump?


If you open your fuel cap and have someone turn the ignition on you should hear a buzzing noise in the gas tank for two seconds. That's your fuel pump. Also go to the pressure regulator under the hood, access the pressure tester valve, press on the valve and have someone crank the engine for one second. You should get gas coming out.

May 29, 2011 | 2003 Ford Focus

1 Answer

Car will not turn over 1997 Grand Am


do you mean it won`t crank over then it could be the starter.check for voltage at the large wire terminal this is the battery feed wire directly from the battery.then check for voltage at the smaller terminal while someone tries to start the car.there should be voltage at this terminal only when trying to start.if both of these test are good then you will need a starter motor.the starter is located at the rad side of the motor were the motor bolts to the transmission,at the bottom side of the motor.if you mean it cranks over but won`t start then you need to check for spark at the plugs then check to make sure you have fuel with the proper pressure.a quick way is to spray carb cleaner into the intake while someone tries to start the car if it starts then you have a fuel problem,and you will need to test fuel pressure.

Apr 29, 2011 | 1997 Pontiac Grand Am

1 Answer

Crank, won't start problem. I checked the spark plugs on Jeep 98. Looks good. Could it be the crank sensor or starter coil?


Yes it is very much possible.But there are many other possibilities too,including starter and spark plugs issue.

If your engine cranks normally but will not start because it has no spark, or it stalls and won't restart because it has no spark.

You can also do a test to confirm the problem .The procedure to do the test is as follows:---

If your engine has spark plug wires, disconnect one of the plug wires from a spark plug and place the end of the wire near a metal surface on the engine. Then insert a small Phillips screwdriver into the end of the wire (the plug boot), or a small bolt or nail to provide a conductive path. Then crank the engine and look for a spark to jump from the screwdriver, bolt or nail in the end of the plug wire to the engine. If you do not see a spark, there is an ignition problem.

OR-----------

If your engine has a coil-on-plug ignition system with no plug wires, In that case remove one of the coils from the spark plug and insert an old spark plug, a spark plug tester or a screwdriver into the end of the coil. Ground the spark plug or plug tester to the engine, then crank the engine and look for a spark. No spark indicates an ignition problem.If the engine has no spark, check for voltage at the coil positive terminal when the ignition key is on. If NO voltage, then problem is on the trigger side of the coil (pickup, crank sensor, ignition module or primary wiring circuit).

But If there is NO voltage at the coil itself, then in that case the problem is on the supply side (the ignition switch or ignition wiring circuit).-----------------

Jeep cranks but no start:----------------

A jeep that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also these problems are related to faulty spark plug. Check the spark at spark plugs when you start the jeep. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt. If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced. If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the jeep. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the jeep. If its very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the jeep. If the car starts momentarily, then there's a good chance the fuel pump is not working or the jeep is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gauge and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem. Thanks. Helpmech.

Jan 07, 2011 | Jeep Cherokee Cars & Trucks

3 Answers

1994 ranger 2.3L 5 speed, 2WD, a/c. Cranks but


connect fuel pressure gauge see what pressure you have with key on reply back

Feb 04, 2010 | Ford Ranger Cars & Trucks

Not finding what you are looking for?
2002 Oldsmobile Alero Logo

Related Topics:

62 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts

yadayada
yadayada

Level 3 Expert

60792 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you an Oldsmobile Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...