Question about 2005 Jeep Grand Cherokee

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2005 Grand Cherokee periodically will not start on first attempt. Accessed diagnosis codes and found P0688 and P2100. Seems like problem happens after driving it for a few miles, making a stop, then attempting to re-start vehicle for next stop

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P0688 is the asd cirsuit and p2100 is eletronic throttle circuit sounds like the ets is having a problem and asd shuting down

Posted on Nov 23, 2013

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Posted on Jan 02, 2017

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SOURCE: 1997 Jeep Grand Cherokee cranks but won't start

Same thing happened to me at about 140k. It was the fuel pump. Best way to test if your pump is failing and loosing pressure is to see if the car will start immediately after it has been running, or turn the key to the alt position for a few minutes before starting. If your engine fires faster after it has been running or the key has been in the alt position you will probably need a new fuel pump. Great news is with a very deep socket to get the tank straps off its a 30 minute job to replace the pump/filter assembly.

Posted on Dec 29, 2008

  • 115 Answers

SOURCE: 2005 jeep grand cherokee limited 5.7 hemi vehicles hesitates

The egr valve is located on the front of the right cylinder head. It has a tube attached to it and going to the intake manifold.It has failed and is why your jeep is running rough and hesitating. Replace it and it will fix your driveabllity issues. Disconnect the battery for 2 min to clear the code.

Posted on Apr 02, 2009

  • 25 Answers

SOURCE: I'm experieince intermittent starting . One day the jeep will crank & start, the next day when I attempt to start it I get nothing.

Its the starter solenoid. Remove 2 bolts and the lead wire and pull the starter out. most local parts stores can test the starter for you, but if the problem is intermittent it might not show up during their test.

On my jeep, after pulling the starter, I disassembled the solenoid. The actual failure of the solenoid was the electrical contact. I cleaned off the corrosion and have had no problems for 40,000 miles.

Posted on Apr 17, 2009

  • 67 Answers

SOURCE: 2001 Jeep Grand Cherokee 4.7L crank no start

easy trouble shoot easy fix ! check to see if its getting fire if not replace the crank sensor it will fire right up common problem with the jeeps . Hope this helps you out !!!

Posted on Jun 02, 2009

  • 580 Answers

SOURCE: 2005 Grand Cherokee Limited Service 4 Wheel Drive Light On

Have the 4wd serviced

Posted on Jul 19, 2009

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2001Dodge caravan 3.8L engine cranks but won't start, and dash lights and gauges go wacky

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1 Answer

Wireless module

you want to fix this?
what is the question.?
want me to guess?
or tell you the 100s steps in diagnosis of this feature>? (shop steps)

my guess, is you have the remote engine start option.
and you press the button at it does what?
name what it does exactly. (wont even attempt to crank? over?)
btw, this system is a risky system.
and has many safety features to protect the public.
did you read the operators guide on this? yet?
lost it?
here it is for free, read the Remote start pages..
it shows, how to diagnose simple issues.
door lock failure? or not in park, or ?
there are many failures (simple) that can kill this feature dead.
for good cause.

Mar 21, 2014 | 2005 Jeep Grand Cherokee

1 Answer

2005 jeep grand Cherokee periodically fails to start on first attempt. Seems like problem is more likely to flare up following a short drive and then attempting to restart vehicle for next errand. Was...

google those 2 DTCs, then post what is not clear.
or login to and read what they mean and how to diagnose them. better buy a real FSM. its 100 times better.

Oct 14, 2013 | 2005 Jeep Grand Cherokee

1 Answer

2000 Jeep Grand Cherokee codes p0132 p0141 p0152 p0161 Keep Coming Back

Then the problem, is not fixed and needs further diagnosis using special equipment..

May 31, 2013 | 2001 Jeep Grand Cherokee

1 Answer

My 2005 PT Cruiser shows error codes P0508, P0688, and P0522. Sometimes it runs well, and other times it runs rough then dies and won't start back.

this obd2 trouble code table can help u understand the meaning of code.
po522, the possible solution:
The most likely cause is a faulty oil pressure sensor/switch.
for p0688, you can Check all the ECM fuses, if the fuses are OK try replacing the ASD relay.

Aug 15, 2011 | 2005 Chrysler PT Cruiser

1 Answer

I gat 3 cods P0129, P0685 and P0688 and then cam the "enable" I don't start the engine. What is the problem? Can you help me?

P0129-This Relates to Pressure for Barometric is too Low
P0685-This Relates to Open circuit for PCM/ECM Power Relay Control
P0688-This Relates to Circuit for PCM/ECM Power Relay Sense
I am not 100% sure that these are correct as I had to go through Chrysler settings to find this model.
I would check the airflow sensor first on the ducting from air cleaner to engine.
Check the spark plugs to ensure that they haven't fouled.
I hope this helps you,or get back to me with your results for further diagnosis.

Apr 02, 2011 | 2005 Dodge Grand Caravan

3 Answers


I have found the solution to this problem. I have replaced a total of 3 starter motors and has gone away for various periods of time. Further diagnosed when concern happened again starter
would work again after starter ignition feed wire wiggled. I found corrosion build up in connector at ignition feed wire. I replaced connector on wire to starter solenoid and concern has not returned.

Aug 31, 2010 | 2007 Jeep Grand Cherokee Overland

1 Answer

The headlights on my 2005 grand cherokee flicker

Solution implys a diagnosis and no one can give an accurate diagnosis from the information you provided. I can however give a ist of possible tests to eliinate some possibilities. Check your battery voltage with a Digital Multimeter, next check the charging voltage, if you are unsure how to perform either of these tests check with a local autoparts store, they will try to sell you a battery so they have the equipment to check on hand. if this does not give any more information then try to clean and re connect grounds. let me know the outcome

Nov 17, 2009 | 2005 Jeep Grand Cherokee

3 Answers

2005 jeep grand cherokee wont start

it happened to me i replaced the starter and it works fine now

Dec 18, 2008 | 2005 Jeep Grand Cherokee

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