Question about 1995 Jeep Grand Cherokee
I changed the spark plugs, new battery, added fuel injection cleaner started up fine for three days and now it will not start.
Get your codes first the car will tell you what is wrong.
Posted on May 29, 2014
Possibly a bad solenoid. There will be one attached to the starter and might be one against your firewall.
Posted on May 24, 2014
Your problem can come from several sources, the solenoid can have a failed coil and this is easy to check for once a control terminal (thinner wire) is disconnected by measuring resistance with a multimeter. This should be in the low Ohms range and is a few Ohms, in any case under 20. Disconnect the negative side of the battery (always this one first) before attempting to locate the problem, The heavy terminals of the solenoid can be corroded and should be cleaned with a wire brush. Internally, the solenoid contacts which are exposed to 100+ amperes when starting, can arc away with time and either exhibit intermittent on no contact at all. If the coil is energized, the power terminals of the solenoid should measure the same as the multimeter leads when just shorted to each other. Any resistance measurable with a standard meter should be close to zero. If the solenoid seems OK, then the battery clamps and cables should be removed and cleaned at every junction. This means at the battery, the connection to the solenoid, the connection to the starter. If any of these is less than perfect, they can drop all of the 12 volts robbing the starter of energy. After all these have been done, reconnect the battery, positive clamp first, then finally the negative terminal.
Posted on May 21, 2014
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Posted on Jan 02, 2017
I had the same problem and I found out that the battery was bad. since everything runs off the computer there wasnt enough juice to run both the car and the computer the jeep ran good after putting a new battery in it. so try this first before you spend a lot of money on a shop fix because they wont think about the battery being bad. they will want to replace everything but. hope this helps
Posted on Sep 15, 2008
Are you getting spark from coil wire when cranking? If so, check the cap & rotor. If not, the most common failure is the crank sensor. If you have a 4,0, you can find it on the drivers side of the bellhousing, in line with the flywheel, just where it's annoying to work on. There is a test you can make, but I don't have the specific test values or the correct terminals to check. (you can find that info in any half decent manual.
Posted on Jan 08, 2009
it most definately is the crank shaft sensor. same exact prob i had. it costs about 60 bucks and 3 minutes to replace yourself. one bolt holds it into the transmission bell housing and one connector wire. very simple fix. call off the wrecker. just have plenty of ratchet extensions available i had to go in from behind the transfer case to reach the bolt but it was still pretty simple to install.
Posted on Jan 29, 2009
have the crank sensor replaced this controls the spark and injector pulse it is located on the drivers back side of the engine above the transmission housing!
Posted on Jun 11, 2009
my jeep did the same thing. when you open the hood, on the right hand side of the engine, it was two small rubber hoses, the back hose came off, i think it was the air intake. it was only easy to fix, just push it back on, it should be a small clamp on it.
Posted on May 25, 2011
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