Question about 1999 Jeep Cherokee

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99 jeep cherokee after sitting 6or10 hours or more.starts fine,i here the fuelpump working.within the first few miles it just dies i have to crank it a bit but it starts back up and so far keeps running the rest of the way to my destination

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If its warmed up it runs OK? The coolant temperture senser may be lying and saying the motor is warm when it's not. If the check engine light is on it may be indicating that or some other equally damaging problem. Most auto parts stores will connect to your Jeep and tell you what the codes are for no charge. Some stores may even reset the light for you. The coolant senser can lye and not turn the light on. A true scanner( not a code reader. can tell the values of the sensers as the Jeep runs. f the car is cold and the scanner says it's 180 degrees coolant you have found the problem. A wrong senser that has turned the cheak engine light on can have the computer sub a good value for a warmed up car so the car will still run, but not nessaryly the best till the check engine light is investagated and repairs are made

Posted on May 13, 2010

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I have a 1993 Jeep Grand cherokee laredo with the 4.0 its starts for only a few seconds and dies changed the fuel pump and fuel filter and the sercurity light doesn't come on im stumped any help ?


Check the crankshaft position sensor, i have repaired 3 Jeeps (after the owner spent a lot of time and money replacing fuel pumps,TPS, and many other items) then got frustrated, brought it to me and within an hour it was running fine with a new CPS

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My 1995 jeep grand cherokee Laredo won't start, or


You might not believe this, but check your battery. Some of these vehicles have cut-outs when the battery level goes below a preset amount.
I work on Ford brands and on them, a low battery level will even disconnect the Alternator circuit and mess with the starter. Some even act up when the battery slightly dips below 12 volts.

Your antitheft can make your starter cut out. And If you think about it, all of the measurements to make the engine run are based on feedback of voltage and amperage. This is how the engine management system adjusts. If your prime source of power is low, then all of the following electrical readings will be low. Some may be too low to work.

Your fuelpump will hold pressure in a closed system for hours. The fuel pressure regulator will command the fuelpump to stop working if the fuel pressure is at maximum. Without responses from the other components and after satisfactory pressure, the fuelpump will turn off.

Mar 20, 2012 | 1995 Jeep Grand Cherokee

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Check spark to plugs. Possible crankshaft position sensor. Located at rear of engine between engine and trans.

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2005 jeep grand cherokee 3.7 40,000 miles. Last 8 months intermittent no crank can sit for eight hours or 10 minutes. Original battery but load tests fine. Starter replaced. Dealer had it for two days...


i had a similar problem with a gmc jimmy and changed ignition module several times before i ended up buying a new distributor and changing it out and have had no problem since 2 years ago

Apr 23, 2009 | Jeep Grand Cherokee Cars & Trucks

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2002 Jeep GC Laredo: Starts up then stalls within seconds


Does the vehicle crank for extended period of time upon first starting? If so the fuel pump needs replacing.

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1999 jeep cherokee just turns off while driving


ok - i might be able to help you out . when you say it starts to power down what really do you mean . if pumping the throttle makes it a bit better then probably its got issues with injectors or with the air flow meter . also check if the engine computer is logging any codes . if you need more help feel free to ask

Feb 08, 2009 | 1999 Jeep Cherokee

1 Answer

Truck won't start


this sounds like crankshaft position sensor, my Cherokee was ding same thing it ended up being crank shaft position sensor. this part costs about $50 and is easy to install.

Dec 02, 2008 | 1998 Jeep Cherokee

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