1997 jeep grand Cherokee lorado starting issues - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK > Troubleshooting/Problems

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 01-09-2016, 07:51 PM
Member
 
Join Date: Jan 2016
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 342
scottmitchell722 is on a distinguished road
1997 jeep grand Cherokee lorado starting issues

OK has anyone had this issue. Sometimes she will start up no problem then other times she will just crank over and over before she fires up. I had someone say clogged fuel filter. So I got a fuel injector cleaner and filled my tank half a tank later still have same issue. Someone said it's your starter so I went to auto zone and they did the test to check battery, alternator and starter the starter showed it was slow. I was told bring the starter in and it could be put on the other tester i took it off to have it tested to find out it is fine. Still having the same issue of hit and miss with slow start. Any help would be appreciated

Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 01-10-2016, 06:53 PM
Frango100's Avatar
The beast from Brazil

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 7,270
Thanks: 17
Thanked 366 Times in 353 Posts
Rep Power: 529387
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: 1997 jeep grand Cherokee lorado starting issues

Welcome to the garage.
You are posting in the WK section now (05-10 grand cherokee), your jeep is a ZJ.
Maybe you get better answers in the ZJ section.
Just to be sure what you mean, does it crank normally, but takes time to fire up, or does it crank slowly to begin with?
Is there any difference between cold start and hot start? Did you already try to prime the fuel system first before starting? Just switch ignition to run without starting and after a few seconds back to off. Do this two more times and then start. If it then always start normally, i would suspect air in the fuel line due to the fuel returning to the tank. This is mostly a fuel pressure regulator problem.
If it doesn´t help, and it starts more difficult when hot, i would try the crank position sensor.
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #3  
Old 01-10-2016, 09:21 PM
Member
 
Join Date: Jan 2016
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 342
scottmitchell722 is on a distinguished road
Re: 1997 jeep grand Cherokee lorado starting issues

Sorry new here didn't know where to post. It cranks normal but takes time to fire up. No difference in cold or warm starts has same issue. Tried to prime the fuel didn't make a difference. I had someone say that it is the starter relay. But I have no idea if it is or isn't yet too late at night and cold to do that. Lol
Reply With Quote
  #4  
Old 01-11-2016, 06:54 PM
Frango100's Avatar
The beast from Brazil

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 7,270
Thanks: 17
Thanked 366 Times in 353 Posts
Rep Power: 529387
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: 1997 jeep grand Cherokee lorado starting issues

If it cranks with normal speed, then the starter motor, solenoid and starter relay are ok.
If the fuel filter was clogged, it would run very bad and accelerate bad, but you didn´t mention this. The day it doesn´t want to start directly, see if there is fuel under pressure from the fuel rail. Don´t know if your jeep has a schräder valve on the rail, which core can be pushed in to check if there is fuel. Use a rag to catch the fuel.
If this seems to be ok, i would think of a sensor or a relay. First swap the auto shutdown relay with one of its nabours of the same type and see if that makes any difference. A bad MAP sensor could cause hard starting, but normally would cause driving problems as well.
A bad coolant temperature sensor or inlet temperature sensor could also influence the injected fuel and cause hard starting.
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #5  
Old 01-11-2016, 09:03 PM
Member
 
Join Date: Jan 2016
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 342
scottmitchell722 is on a distinguished road
Re: 1997 jeep grand Cherokee lorado starting issues

It has had a warning light that came on the little screen that has the outline of the jeeps body. That light says bad coolant sensor. I replaced it two times it didn't clear that. I had someone tell me that it is the wire harness plug in at the sensor that more then likely was the issue. Never found anyone who knew how to fix that but I have had this jeep for 4 or 5 years and it has been like that since I got it. But the starting issue is just a week or two been going on
Reply With Quote
  #6  
Old 01-12-2016, 07:43 AM
Frango100's Avatar
The beast from Brazil

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 7,270
Thanks: 17
Thanked 366 Times in 353 Posts
Rep Power: 529387
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: 1997 jeep grand Cherokee lorado starting issues

When it finally starts, do you smell raw fuel or is there a lot of smoke coming from the exhaust?
There is no big difference in the ambient temperature now compared to a few weeks ago? Or that it has the starting difficulty allways on cold days or wet days for example. I bet the problem is fuel related and most probably not enough fuel is injected to start it up, due to some sensor problem. Is the 97 jeep already OBD2? If so, then you can put it on a scanner to check the different sensor outputs. You can see the inlet temperature, the coolant temperature and the MAP and compare them with the local ambient values (on a cold engine).
Once started, does it idle well and does it drive ok?
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #7  
Old 01-12-2016, 08:03 AM
Member
 
Join Date: Jan 2016
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 342
scottmitchell722 is on a distinguished road
Re: 1997 jeep grand Cherokee lorado starting issues

Now smell of raw fuel as for the exhaust no more then what it has always done. It started doing this when we had a freezing rain that turned really cold but here in Michigan it can be snowing one hour and then burning up hot. So the next day it was warmer and still had the same issues starting sorry I am not very mechanically incline. So I don't know what OBD2 is? It does have a port to plug in to check engine light. But other than that I am not sure. Once it is running it drives fine and idles no issues at all.
Reply With Quote
  #8  
Old 01-12-2016, 08:52 AM
Frango100's Avatar
The beast from Brazil

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 7,270
Thanks: 17
Thanked 366 Times in 353 Posts
Rep Power: 529387
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: 1997 jeep grand Cherokee lorado starting issues

Did you check if there was fuel under pressure at the fuel rail when it didn´t want to start directly?
OBD2 is a protocol which is in use since 97 i believe and is a standard for car manufactures for the engine control module to show standard fault codes (or manufactures specific). Via the same plug also other components like ABS and TCM can be accessed.
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #9  
Old 01-12-2016, 01:20 PM
Premium Member
My Jeep: 2014 5.7L WK2
 
Join Date: May 2013
Location: Colorado
Posts: 3,950
Thanks: 72
Thanked 265 Times in 237 Posts
Rep Power: 46204
lstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond reputelstowell has a reputation beyond repute
Re: 1997 jeep grand Cherokee lorado starting issues

Quote:
Originally Posted by scottmitchell722 View Post
Now smell of raw fuel as for the exhaust no more then what it has always done. It started doing this when we had a freezing rain that turned really cold but here in Michigan it can be snowing one hour and then burning up hot. So the next day it was warmer and still had the same issues starting sorry I am not very mechanically incline. So I don't know what OBD2 is? It does have a port to plug in to check engine light. But other than that I am not sure. Once it is running it drives fine and idles no issues at all.
OBD2 is on board diagnostics version 2, which being a 97 you'd have.
The connector is down just to the left of your left knee under the dash.
If you take a look at a reader/dongle, the connector would be pretty obvious to spot.


You can usually borrow one from a local Autozone if you have alternate transportation, but if I had a ZJ, I'd invest in a dongle and a smartphone app, or a standalone unit that can read and reset codes.

The smartphone/dongle units tend to have better ability to translate any codes into something resembling text, but you could always post here.

If you have the ATC panel, have you tried pulling codes with the key on/off/on/off/on method easily googled?
Reply With Quote
  #10  
Old 01-12-2016, 01:48 PM
Member
 
Join Date: Jan 2016
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 342
scottmitchell722 is on a distinguished road
Re: 1997 jeep grand Cherokee lorado starting issues

I have not checked fuel pressure. I just looked up the pulling codes with the key I will try it later on when I get home. As for the port under the dashboard there is a port there. But I thought it will only see problems if you have a check engine light on. Is that correct?
Reply With Quote
  #11  
Old 01-12-2016, 02:05 PM
Frango100's Avatar
The beast from Brazil

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 7,270
Thanks: 17
Thanked 366 Times in 353 Posts
Rep Power: 529387
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: 1997 jeep grand Cherokee lorado starting issues

No, not neccessarily. But still good to check the sensors via live data.
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #12  
Old 01-12-2016, 02:07 PM
Member
 
Join Date: Jan 2016
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 342
scottmitchell722 is on a distinguished road
Re: 1997 jeep grand Cherokee lorado starting issues

OK I will try that if I get home before auto zone closes. Roads are bad we are getting a lot of snow right now
Reply With Quote
Reply

Tags
grand cherokee, jeep

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
2013 GC Lorado - Disable Key Not In Vehicle Chime apm_ Tech Tips/DIY/How To 0 01-08-2015 07:59 AM
1995 grand cherokee lorado mudrunner Troubleshooting/Problems Discussion 2 04-04-2014 05:17 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 06:38 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.