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My 1999 buick turns over but won't start I had the ignition module checked & it was ok it appears that i am getting spark any ideas why it won't start?
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There is a fuse for the ignition module , ELEK IGN 15 amp . Really don't think this would be your problem , more then likely the crankshaft position sensor or the ignition module is . Your best bet have it towed to a qualified repair shop.
sounds like it could be your crank sencer or being a 99 does it have a distributor or a coil over plug ignistion system called a DIS [distributorless ignistion system] , if it has a distributor it could be cap and rotor that you need. best bet is to get a diognostic systems check but if no codes detected then you need to check all in line fuseable links for a dead short,a fried brain box ,or a bad pron in your ecm [electronic control module ]
Get some engine starter spray. Follow instructions on spraying into intake. This will serve as a fuel source to test spark/ignition. You will want help cranking the car while you spray. If car stumbles and tries to run, you have a fuel problem. If after trying for a few minutes there is no change, then I would bet you don't have spark. Of course you could go further and say there could be a timing issue, no compression, etc. But I would start with the easy stuff first. When was the last time you did a tune-up? Are the plugs in good shape?
i know industry jargon can be confusing, but lets try this. if it turns over but won't start, it could be your ''ignition module'' that sits on top of the vave cover on the motor or it might be the fuel pump or filter. make sure when you crank the engine that the key is all the way turned or it may not always make a proper contact to activate the ignition module. iv'e seen this before & had to change the ignition switch & all worked ok after that. i would need to know engine lt size to give you more details on the matter. please get back to me.
So, do you hear the pump buzz on, when key is on? If that's good, then check your ignition circuit: check for spark at a plug. Use insulated pliers, hold end of plug wire 1/4 inch form engine bolt or ground source. When cranked, you should see a bright blue spark. Yes? Try another plug wire, too. No? Try another plug wire. If you have NO spark, could be your coil, coil pack, crank position sensor, ignition module. I would recommend using a diagnostic flow-chart to go through the ignition circuit. That way, you are not replacing unecessary parts_Expensive! Of course, if you have spark at plugs, your ignition circuit is good! Then you have to look further, like your injector circuit. Good luck.
After changing the ignition module, you may have broken the communication between all the components in the anti theft security system. This is common on GM antitheft systems. Check out this link for how it works and solutions to security problems. http://vatspasslockpasskeysecurityhelp.yolasite.com/
I think I may be able to help you, but first we need to clear a few things up. Is it getting spark or not? If it is getting spark, why are we testing the ignition module? The next question would then be how did you go about determining that it is getting fuel? Have you tested your fuel pressure? If so, what was the pressure reading? Did you check for injector pulse to make sure that the Powertrain Control Module (PCM) is able to fire the fuel injectors?
Also, you are working with an engine where the ignition timing and the fuel is controlled by the PCM. Have you scanned the PCM for fault codes? If so, what codes did you get?
If you do not know the answers to these questions, or if you do not know how to do this stuff, post a comment to let me know. I can give you step by step instructions on how figure this out. These questions MUST be answered before anybody can give you any REAL help with your problem (Although many may try to "guess" - which rarely works and usually turns out to be VERY EXPENSIVE!).
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