Question about 2005 Dodge Grand Caravan
Pull a spark plug wire and check for spark. Just take a spare, working spark plug and put it on a plug wire (or take a plug out of your engine), and ground the plug hex or the plug threads on a metal piece of the engine. Now the plug is grounded, so you won't get shocked when checking for spark. But just in case, wrap a heavy rag around the wire, or use a glove to hold it, and watch the spark jump the electrode while someone is cranking the engine. A good ignition system will have a blue, snapping spark. If you have no spark, check a second wire, and still nothing, then the ignition system needs checked-the coils, ignition module, and crank position sensor, and so on. An orange or yellowish spark is also a sign of ignition problems.
If you do have spark when checking, then check if fuel is reaching the engine-the schraeder valve on the fuel rail is the test port for a fuel pressure gauge. Really what you need is to check fuel pressure, but if you punch the center pin on the valve, and gas squirts out, then you know gas is up to the injectors and under some pressure.
Posted on May 05, 2013
Testimonial: "Is there a way to check the ignition module and crank position sensor to see if they are good or not?? We checked the spark plugs and had no spark on any of them, so we replaced the coil pack already and it is still not starting. There is fuel going to the spark plugs to create a spark."
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Posted on Jan 02, 2017
Test at the spark plug if you are getting current there with a cheap spark plug tester, if not, it could be the spark box. ( it used to be an ignition coil on older cars ) double check the computer for codes which may lead to a cam sensor not giving the PCM information.
Posted on Mar 30, 2010
My 2003 dodge caravan would not start after driving about 1/2 hour. I stopped for coffee and when got back in to start it started I switched gears and it stalled. I tried to start again switched gears then it started but only for 2 sec. No clicking, no cranking sound just would not start but battery functions were great. Spent 2 days with a mechanic who could not resolve so sent to Dodge. After a day of putting wires back and checking out the problem they said it was the computer. Said that it was bad and could be replaced at no charge due to malfunction. Yes, it worked fine afterwards no more problems. They also said that some of the computers are found to be defective like this one so I hope this helps you in the right choice to have the dealer check it out if you are unable to get a computer reading and there is no obvious short in the system. Free sounded very good but as you know there is no such thing as really free as they got me for other things $350 worth. ouch!
Posted on Jul 24, 2010
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