1998 Pontiac Sunfire car cranks but no start

JROA88

MEMBER
1998 PONTIAC SUNFIRE

Electrical problem
1998 Pontiac Sunfire 4 cyl Two Wheel Drive Manual

im having a problem trying to start the car. Car cranks doesnt start I check to see if there was any spark, but no. I changed the plugs n wires but still nothing. I also tried to jump start it but also did nothing. My next is is to check the coil packs how would I be able to tell if there still in working condtion? No fuses are bad either.

5 Replies

JDL

MECHANIC
16,098 POSTS

You have the 2.2 litre engine? You have plug wires? The problem could be several different issues. You have spark at none of the plugs? Engine cranking, you have no injector pulse? If no spark and no injector pulse, I look for an rpm signal, that signal comes from the crank sensor. I can't say the crank sensor is faulty, could be other issues. Any applicable trouble codes? At the least, you need an obd 2 code reader. Even then, the codes, if there are any, may not help?

I wouldn't think both coils would go bad at the same time?

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Sunday, October 31st, 2010 AT 2:05 PM

JROA88

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3 POSTS

I have a 98 sunfire its stick 2.2. When I got the car it was not running at all and still isnt. I tried to charge the battery to see if it would start but nothing the only thing that it can do is crank over.
I started looking for a spark from the plugs to see if it would start after charging the battery up for a few mins. Then I notice no spark so then I tried to replace the wires plugs and the cam shaft sensor. I tried to avoid the coil packs.
If its not the coil packs what else it could be? I know its getting gas but im not sure the battery is good.
What should I check to see if the battery is good and the coil packs?

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Monday, November 1st, 2010 AT 2:59 PM

JDL

MECHANIC
16,098 POSTS

If you use a digital multimeter across battery posts, everything turned off, the generic spec for a full charge is 12.6 volts. If the battery is down get it charged. Engine cranking, the reading across the battery posts, usually, shouldn't drop below 10 volts. Unless you can do a little testing, I'm not sure how to help?

At the ignition module, you can check for voltage and ground, probably a two wire connector, key on, pink wire is voltage, black is ground.

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Monday, November 1st, 2010 AT 3:19 PM

JROA88

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3 POSTS

If im not getting spark what would be the first thing to check for and how do I go about fallowing it back to the source?
I know its not the plugs, wires, coil packs, battery, fuses and camshaft sensor they are all new. What and where should I check next to see if im getting voltage?

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Tuesday, November 2nd, 2010 AT 2:52 PM

JDL

MECHANIC
16,098 POSTS

If there is a problem with wiring circuit somewhere, it won't matter what part you replace. I've already told you all I know, I can't go any further. The voltage and ground to the ignition module, pink wire is voltage, goes hot with the key on. Black is ground. Take connector loose, use voltage tester between the two wires. If no voltage, comes from ignition fuse.