Question about 1999 GMC Jimmy

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My 99 jimmy will crank but wont start, after a day or two sitting the battery drains. The alternator and battery are only a year old.

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It sounds like a fuel problem, cheapest option is to replace fuel filter first if that doesnt work do a bleed test on the fuel line to make sure the fuel pump is working.

Posted on Aug 30, 2010

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Have you had the alternator check for a bad diode it may not put out enough to keep the battery charged after 10 to 14 days. The bridge in the alternator could be weak. Hope this helps.

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Gmc jimmy turns over but wont start


Are you getting spark to the plugs when it won't start ?
Injector pulse ?
It sounds like something is shorting out when its hot or wet which could be a number of things, including a wiring harness issue.

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Take mass air flow sensor off and clean the inside with a non-chlronated brake cleaner and allow to dry for 15 minutes then re-install.

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1997 chevy blazer s10 cranks but wont start


You have a new battery and it cranks. Turning over is cranking. You are saying it won't start after sitting for six months? What is an old mechanic? Was the cable installed at home during the one year layoff? It sounds as though you failed to hold the old mechanic responsible for installing the correct cable or adjusting the one you have ,so it will start. You have a safety switch issue by the sound of it. Make sure you have the right cable and then find out how to install and if applicable,adjust properly

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3 Answers

If my 2005 jeep sits and i do not drive it everyday, it will not start the next day. Had the battery changed a year ago.


You can tell if the battery is weak while it is cranking. If that is the case then battery need to recharged. When a car is not running regularly, it doesn't have the charge from the alternator so it becomes weak. If there is no sign of weakness in cranking then the problem is not from the battery, but it is from lacking of two basic things: ignition and / or fuel. Need to find out what is the root cause. Good luck.

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first you have to make sure you have spark, fuel pressure, injector signal, engine compression, cat shouldn't cause a no start,

Dec 08, 2009 | 1997 GMC Jimmy

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WHERE IS THE FUSE OR RELAY FOR THE FACTORY ALARM 99GMCJIMMY


check at battery for voltage with truck off,then check battery condition.it (the battery) could be weak.

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I think I have a bad alternator on my 1992 volvo 940 turbo


Hi!
Start by charging the battery completely. Then, start your car and while running, remove the NEGATIVE battery cable from the battery. If the car dies, your alternator is bad. If it keeps running, reinstall the battery cable and turn the car off. Check for something that's on that would drain your battery like a light in the trunk, glove box, etc. that wont shut off.

Apr 06, 2009 | 1992 Volvo 940

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