Question about 2001 Jeep Grand Cherokee

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Brotherinlaw jumped car hooking up backwards niecetried to start it like that now nowq only cranks over no spark

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This will blow one of the big maxi fuses
start with a fuse check

Posted on Jan 01, 2011

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Posted on Jan 02, 2017

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My car can cranking but wont start,i have been replace fuel pump,spark plugs and crank angle sensor but still same problem.i need help please.Thanks.


Did you check the ignition coil for spark? Also, U might want to try replacing the coil since a weak spark will not jump the gap within the confines of a pressurized cylinder.

Sep 11, 2016 | 2004 Mercedes-Benz C 180

1 Answer

1990 jeep Cherokee won't run but will crank. I hooked my battery up backwards? Everything else in and on my jeep works replaced ignition coil , distributor cap and rotor Any suggestions?


Ign module could be the problem do you have spark when cranking. If you have spark can you hear the fuel pump running while cranking. Let me know

Oct 03, 2015 | Jeep Cars & Trucks

1 Answer

My 2004 Mitsubishi Galant did have a small blue spark now it don't spark at all it had jumped timing did new timing and water pump belt still no spark from plugs do I need new crank sensor


Make sure the coils plugged in I've seen this way to many times. If its not that follow the path backwards. Spark plug/wire/coil/icm/crank sensor cam sensor/ ecm

Aug 14, 2015 | Mitsubishi Cars & Trucks

2 Answers

Saturn jumper cables hooked up backwards


Try charging the battery more. Even though your lights may come one, starting a vehicle requires massive amounts of amperage from the batter. It's possible that your jumper cables aren't a thick enough guage to supply enough power as well. Sometimes the vehicle you're jumping from might not have enough power to support your vehicle's starting power requirements.

Apr 15, 2014 | 2001 Saturn SL

1 Answer

Hooked up battery backwards now engine isn't


No. Replace the Engine control unit that was destroyed when you reversed the polarity to it.

Jul 22, 2013 | Cars & Trucks

1 Answer

I have a 2001 alero with a manual transmission. My battery is dead and I am wondering if I can jump start it or will the security system not allow it? I tied it once but it didnt start.


You should be able to jump start it, make sure that your battery cables are tightly connected to that battery. Then hook up that positive battery cable on the car that is running then the positive on the battery you are jump starting then hook up the negative cable on the car running then the negative to the dead car. If your connections are good when you hook up the last connection you should be able to see a little spark, and hear a hissing or popping noise. Leave it hooked up for at least 5 minutes before you try and crank it. If it then cranks and then just clicks you need a better connection between the jumper cables. If you get nothing it might be your starter if you are getting headlights, and a radio working. If nothing works there is a bad wire somewhere.

May 15, 2011 | 2001 Oldsmobile Alero

2 Answers

Hooked up battery cables backwards now my 200


check main fuse box for ign/inj/ecm fuses.

May 25, 2010 | 2000 Saturn SL

1 Answer

1988 jeep 4.0 battery installed backwards now cranks but wont start


have you checked all ofyour fuses? usually when you hook up a battery backwads you end up blowing a fuse and or fry your alternator on older modeled vehicles as there is no protection for it.

Oct 18, 2008 | 1988 Jeep Cherokee

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