4X4REVIEW.COM Off Road Magazine

Log-in or register now

4X4Review Offroad Magazine - We're 15 years old this month!

   


Free Hi-Res Pics, Desktops and Wallpaper
- '07 FJ Cruiser
- Entire Jeep Heritage
- Jessi Combs Pictures


Random Tip
Send us your tip
View all tips


Car Reviews
Looking for car reviews of all types?
AllPar.com
ToyoLand.com
Subject: '93 Grand Cherokee trouble starting
Prev Next
Please login or register to post a message or a reply.

Author Messages
Gary_Michalec___User is Offline
Bone Stock
Bone Stock
Posts:0

09/14/2003 2:56 AM  
Hello I have a '93 Grand Cherokee that has trouble starting. The engine cranks with no problem but she just won't start and run. Usually takes 4-5 trys then she'll start the runs rough for a few minutes then smooths out. I've noticed in the last few days that the "Check Engine" light doesn't come on all the time when I turn the key as part of the normal start up sequence. The other lights come on (ABS, Seat Belt Indicator, Parking BraKe etc) then go off. When the "Check Engine" light comes on with the others she starts up just fine, still runs a little rough but not to bad.

Told by the dealer that the electronic control unit probably needs to be replaced but they want $500 for the job. Anything I can check? Is the ECU something that easily replaced? What do these cost? Any advice will be greatly appreciated.

-Gary
Richard_Tangalin___User is Offline
Bone Stock
Bone Stock
Posts:0

09/30/2003 8:16 AM  
HI!

The samething kept happening to me. I saw my mechanic and he diagnosed a faulty Crank Sensor. This solved the problem and everything has been perfect since the repair. The engine used to never start and sometimes would even die when on the road.

Rich ------------ Gary Michalec at 9/14/2003 2:55:34 AM

Hello I have a '93 Grand Cherokee that has trouble starting. The engine cranks with no problem but she just won't start and run. Usually takes 4-5 trys then she'll start the runs rough for a few minutes then smooths out. I've noticed in the last few days that the "Check Engine" light doesn't come on all the time when I turn the key as part of the normal start up sequence. The other lights come on (ABS, Seat Belt Indicator, Parking BraKe etc) then go off. When the "Check Engine" light comes on with the others she starts up just fine, still runs a little rough but not to bad.

Told by the dealer that the electronic control unit probably needs to be replaced but they want $500 for the job. Anything I can check? Is the ECU something that easily replaced? What do these cost? Any advice will be greatly appreciated.

-Gary
unknown___User is Offline
Bone Stock
Bone Stock
Posts:0

10/02/2003 4:41 PM  
try turning the key on from of to on possition 5 times and get the codes oout of the computer.The check engine light will go off .when it blinks one time after another start counting how many times it blinks then right it down.it will stop for a few seconds and start again,write that one down.When it pauses for around ten seconds then the cycle starts all over again.After all the it usauly will tell you what is wrong,but in the 2 that i had the throtle bady needs to be cleaned ,decent gas ,andnew o2 sensoralways worked
unknown___User is Offline
Bone Stock
Bone Stock
Posts:0

03/28/2004 12:12 AM  
------------ Gary Michalec at 9/14/2003 2:55:55 AM

Hello I have a '93 Grand Cherokee that has trouble starting. The engine cranks with no problem but she just won't start and run. Usually takes 4-5 trys then she'll start the runs rough for a few minutes then smooths out. I've noticed in the last few days that the "Check Engine" light doesn't come on all the time when I turn the key as part of the normal start up sequence. The other lights come on (ABS, Seat Belt Indicator, Parking BraKe etc) then go off. When the "Check Engine" light comes on with the others she starts up just fine, still runs a little rough but not to bad.

Told by the dealer that the electronic control unit probably needs to be replaced but they want $500 for the job. Anything I can check? Is the ECU something that easily replaced? What do these cost? Any advice will be greatly appreciated.

-Gary

I had the same exact problem, and it was the ECU. Went to MOPAR web site and bought a factory warantied high performane ECU for jus under 300 dollars, and you can send in your old ECU for 100 dollar rebate. Questions? My email is redwiking@iwon.com



Dia
Please login or register to post a message or a reply.
Forums > Vehicle Tech Talk Area > Jeep > '93 Grand Cherokee trouble starting



ActiveForums 3.7