Help, hard to start my Grand Cherokee - JeepForum.com
 
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post #1 of 10 Old 02-25-2006, 11:11 AM Thread Starter
bruceyg
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Help, hard to start my Grand Cherokee

It just keep turning over and takes long time to start, I changed fuel filter, seems doesn't help. I added fuel injector cleaner and COLD Start gas treatment, works, and easier to start my jeep. But when I stop using it the problem comes back. What am I gonna do? I don't wanna use fuel injector cleaner once a tank. Any idea?

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post #2 of 10 Old 02-25-2006, 01:37 PM
Wiley
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I'd have the battery tested, there may be a bad cell. Take it to Autozone or some parts store, they'll test it for you for free. Also, test to make sure your'e getting enough fuel and spark. Good luck.

Justin

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post #3 of 10 Old 02-25-2006, 11:19 PM Thread Starter
bruceyg
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I changed a new battery acouple of weeks ago. I don't think it's the problem of ignition system, probabaly it's fuel system or IAC, when I used fuel injector cleaner and cold start treatment ,the jeep is easy to be started. it's 93 six cylinder model.
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Originally Posted by jwiley121
I'd have the battery tested, there may be a bad cell. Take it to Autozone or some parts store, they'll test it for you for free. Also, test to make sure your'e getting enough fuel and spark. Good luck.
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post #4 of 10 Old 02-25-2006, 11:22 PM
ArloGuthroJeep
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Before you crack over the engine leave the key in the "On" position for a couple seconds and then start-er-up. If that solves it the problem is simply that your fuel pump needs to re-prime the fuel lines and is a pretty common problem with ZJ's (though you didn't way which year/engine you have (*wink wink*))...

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post #5 of 10 Old 02-25-2006, 11:26 PM Thread Starter
bruceyg
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Yes, you are right, it's 1993 4.0L I6 model, what do you mean re-prime the fuel? Do you mean each time I start the jeep I should turn the key to on position and wait few seconds then start it?thx
once I left the key in the "on" postion for half a minute it didn't work, sometimes if I have a good luck just got a quick start. don't know why
I changed the spark plugs, wires and distributor cap half a yr ago.
Quote:
Originally Posted by ArloGuthroJeep
Before you crack over the engine leave the key in the "On" position for a couple seconds and then start-er-up. If that solves it the problem is simply that your fuel pump needs to re-prime the fuel lines and is a pretty common problem with ZJ's (though you didn't way which year/engine you have (*wink wink*))...

1993 ZJ I6 4.0L 148K
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post #6 of 10 Old 02-25-2006, 11:32 PM
ArloGuthroJeep
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Re-prime as in the fuel line looses pressure and it takes the fuel pump a couple seconds to repressureize the line with fuel. Of course if leaving it in the on position for a couple seconds doesn't solve your problem it is something else most likely.

'04 WJ, 6" Clayton LA's, 242 SYE, 35" BFG MT KM2's, 4.56 gears, & D44a locked
'14 WK2 Limited w/5.7L, ORAI, & Tow Package
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post #7 of 10 Old 02-25-2006, 11:42 PM
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Leaving the key on wont keep the fuel lines primed as it was put. (thats the job of the check valve) You have to turn the key off then on again to have it reprime the line before starting.

The pump runs for about 1-2 seconds (closer to 1) when you first turn the key, it doesnt keep doing it when you leave the key on.

If you turn the key on, listen for the pump. Should be a faint wine coming from the rear. Turn the key off then back on and see if it starts easier. (Prime it 1-3 times and see if its easier to start)

Theres nothing there to measure the pressure and keep the pump priming with just the key on. (Unless the engine is running and then the pump is constantly is on)

- Joe -

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post #8 of 10 Old 02-22-2015, 10:57 AM
samsonite1
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Try changing your crank position sensor those cause problems with the fuel pump relay
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post #9 of 10 Old 02-22-2015, 11:08 AM
SAR-Swimmer
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I'm pretty sure he got the problem solved by now, as he's had 9 years to figure it out.
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post #10 of 10 Old 02-22-2015, 12:11 PM
coralman
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BURRRRRRN! I do the same darn thing!

Info on projects and repairs categorized by system
http://www.jeepforum.com/forum/f13/c...-faqs-2863665/

Originally Posted by HighLonesome
lol...if life is as a simple as a 5.9 making you happy, I'd say go ahead and buy it on impulse. ZJs are the way of Zen. Wax on, wax off
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