Ignition Question....
#1
Junior Member
Thread Starter
Join Date: Oct 2009
Location: SE Michigan
Posts: 71
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0L I6
Ignition Question....
I read on another thread a bit ago that 3-4 seconds cranking is fairly normal for the 4.0 I6--is this really true?
My 2000 Cherokee (67,000 miles) does in fact crank from 2-4 secs before starting periodically. Most of the time, it starts right up, but at some times, 2 or 3 turns of the key is necessary.
Is this normal and no big deal, or, should I be looking for a "higher voltage coil" or something? I can't imagine a new coil is in order! Perhaps a plug issue?? I'm sure these are the original plugs, but most plugs are designed for 100K or more???
Thanks all!!
Dan
My 2000 Cherokee (67,000 miles) does in fact crank from 2-4 secs before starting periodically. Most of the time, it starts right up, but at some times, 2 or 3 turns of the key is necessary.
Is this normal and no big deal, or, should I be looking for a "higher voltage coil" or something? I can't imagine a new coil is in order! Perhaps a plug issue?? I'm sure these are the original plugs, but most plugs are designed for 100K or more???
Thanks all!!
Dan
#2
Seasoned Member
Join Date: Sep 2009
Location: East Texas
Posts: 454
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1997
Model: Grand Cherokee
Engine: 4.0
This may be a fuel problem. When you turn the key on the fuel pump runs for a few seconds to pressurize the fuel lines. It may be that you are getting low pressure and it takes a few turns of the key to get the fuel pressurized. You can hear the pump run, in the tank, when you turn the key on.
The two main issues are no ignition= no spark or low or no fuel.
You can remove the plugs and look at the tip to see if they are firing normal. Also, you can open the distributor and look for erosion or carbon tracking. Look at the condition of the rotor.
Just monitor this and see if it gets worse with time.
The two main issues are no ignition= no spark or low or no fuel.
You can remove the plugs and look at the tip to see if they are firing normal. Also, you can open the distributor and look for erosion or carbon tracking. Look at the condition of the rotor.
Just monitor this and see if it gets worse with time.
#3
Junior Member
Thread Starter
Join Date: Oct 2009
Location: SE Michigan
Posts: 71
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0L I6
Thanks ET,
However, I do not have a distributor--it's a coil, so not so easy to determine condition of plugs....
Does the coil pack come into question?
Thanks,
Dan
However, I do not have a distributor--it's a coil, so not so easy to determine condition of plugs....
Does the coil pack come into question?
Thanks,
Dan
#4
CF Veteran
Join Date: Jul 2009
Location: London Ontario Canada
Posts: 1,254
Likes: 0
Received 10 Likes
on
10 Posts
Year: 2000
Model: Cherokee
Engine: 4.0
Coil Pack? You take them off to get to your plugs and just because they say they're good for 100K doesn't mean they will. Put fresh ones in. About $15 and a hour of your time. Could fix it. Got Bosch Platinums in my 98 and it starts FAST.
#5
CF Veteran
Join Date: Jan 2008
Location: LI, NY
Posts: 3,671
Likes: 0
Received 8 Likes
on
8 Posts
Year: 1998
Model: Cherokee
Engine: 4.0, bolt ons for days...
its normal for a cherokee. its the check valve letting gas seep back through the lines into the tank. at least half of my friends with cherokees have this issue, and its really not worth the pain to fix when you can either crank it longer or leave the key in the 'on' position w/o cranking for a few seconds.
#6
Junior Member
Thread Starter
Join Date: Oct 2009
Location: SE Michigan
Posts: 71
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2000
Model: Cherokee
Engine: 4.0L I6
OK--thanks. I guess that's what I was looking for....it's pretty normal, I can leave key in the "On" position for a few seconds if needed, and, if it gets bad, the fix maybe a very inexpensive and easy one.
Thanks guys!
Dan
Thanks guys!
Dan
Thread
Thread Starter
Forum
Replies
Last Post
ZJBeachRunnerGC
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
18
03-10-2021 05:52 PM
ra.stewart
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
02-15-2021 01:47 PM
Jeremy Millner
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
10-02-2015 02:21 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)