Engine Ping - '00 XJ

Engine pings under load going up steep grades at various speeds. Have
been using 87 octane on a regular basis - pun intended - switching to
higher octane doesn't seem to make any difference.
Changing the air filter and plugs. What else should I be looking at?
Coil rail system thus no distributor or coil to mess with. I believe
that the timing is controlled by the PCM. Will I need to have the timing
checked/reset at the dealership? Thanks.

Steve

Try running can of SeaFoam through a vacuum line to clean the upper engine
of carbon and perhaps another full can into the gas tank to clean the
injectors.

If you haven't done a tune-up in the past 2 years/24k you are overdue for
service. Do the SeaFoam before replacing the spark plugs and use the 'old
fashioned' copper plugs, they seem to do better in Jeep engines than the new
high-tech ones in many cases..

SeaFoam Carbon Cleaning
http://s112.photobucket.com/albums/n...m%20Treatment/

Fuel System Cleaning
http://s112.photobucket.com/albums/n...or%20Cleaning/

"Steve Landis" <sdotlandisatcomcastdotnet> wrote

Engine pings under load going up steep grades at various speeds. Have been
using 87 octane on a regular basis - pun intended - switching to higher
octane doesn't seem to make any difference.
Changing the air filter and plugs. What else should I be looking at? Coil
rail system thus no distributor or coil to mess with. I believe that the
timing is controlled by the PCM. Will I need to have the timing
checked/reset at the dealership? Thanks.

Steve

a good fuel injection cleaner run thru the intake such as mopar throttle
body cleaner may knock off the carbon on the valves and help the issue

Steve Landis wrote:

Engine pings under load going up steep grades at various speeds. Have
been using 87 octane on a regular basis - pun intended - switching to
higher octane doesn't seem to make any difference.
Changing the air filter and plugs. What else should I be looking at?
Coil rail system thus no distributor or coil to mess with. I believe
that the timing is controlled by the PCM. Will I need to have the timing
checked/reset at the dealership? Thanks.

Steve

I have run the 20 oz size of Techron through the tank and didn't notice
any improvement. Engine has 127K on it BTW.
What else is there to do for a tune-up? No distributor, rotor, points,
condenser, coil to change out. Fuel filter is in the tank. What am I
missing? Thanks again.

Steve

billy ray wrote:

Try running can of SeaFoam through a vacuum line to clean the upper engine
of carbon and perhaps another full can into the gas tank to clean the
injectors.

If you haven't done a tune-up in the past 2 years/24k you are overdue for
service. Do the SeaFoam before replacing the spark plugs and use the 'old
fashioned' copper plugs, they seem to do better in Jeep engines than the new
high-tech ones in many cases..

SeaFoam Carbon Cleaning
http://s112.photobucket.com/albums/n...m%20Treatment/

Fuel System Cleaning
http://s112.photobucket.com/albums/n...or%20Cleaning/

"Steve Landis" <sdotlandisatcomcastdotnet> wrote in message
news:LqmdnV5uwrHIX5LbnZ2dnUVZ_uCinZ2d (AT) comcast (DOT) com...
Engine pings under load going up steep grades at various speeds. Have been
using 87 octane on a regular basis - pun intended - switching to higher
octane doesn't seem to make any difference.
Changing the air filter and plugs. What else should I be looking at? Coil
rail system thus no distributor or coil to mess with. I believe that the
timing is controlled by the PCM. Will I need to have the timing
checked/reset at the dealership? Thanks.

Steve

Spark plugs, ALL the fluids and ALL the lubricants, clean the throttle body
and idle air passages, ALL new filters.

Your owners manual has a schedule of service, follow the "Severe Service"
recommendations, use ONLY the correct fluids, not what you see advertised
and good quality filters.

For example: Nothing made by Prestone meets current or past DC specs, Fram
oil filters meet ONLY the minimum specifications but sell at a premium
price.

"Steve Landis" <sdotlandisatcomcastdotnet> wrote

I have run the 20 oz size of Techron through the tank and didn't notice any
improvement. Engine has 127K on it BTW.
What else is there to do for a tune-up? No distributor, rotor, points,
condenser, coil to change out. Fuel filter is in the tank. What am I
missing? Thanks again.

Steve

billy ray wrote:
Try running can of SeaFoam through a vacuum line to clean the upper
engine of carbon and perhaps another full can into the gas tank to clean
the injectors.

If you haven't done a tune-up in the past 2 years/24k you are overdue for
service. Do the SeaFoam before replacing the spark plugs and use the
'old fashioned' copper plugs, they seem to do better in Jeep engines than
the new high-tech ones in many cases..

SeaFoam Carbon Cleaning
http://s112.photobucket.com/albums/n...m%20Treatment/

Fuel System Cleaning
http://s112.photobucket.com/albums/n...or%20Cleaning/

"Steve Landis" <sdotlandisatcomcastdotnet> wrote in message
news:LqmdnV5uwrHIX5LbnZ2dnUVZ_uCinZ2d (AT) comcast (DOT) com...
Engine pings under load going up steep grades at various speeds. Have
been using 87 octane on a regular basis - pun intended - switching to
higher octane doesn't seem to make any difference.
Changing the air filter and plugs. What else should I be looking at?
Coil rail system thus no distributor or coil to mess with. I believe
that the timing is controlled by the PCM. Will I need to have the timing
checked/reset at the dealership? Thanks.

Steve

Also...
Techron makes two formulations.
Techron Cleaner which is the concentrated stuff and Cleaner with Techron
which is the diluted stuff.

If you are having drivability problems it wouldn't hurt to do the fuel
system cleaning twice.




"billy ray" <billy_ray (AT) SPAMfuse (DOT) net> wrote

Spark plugs, ALL the fluids and ALL the lubricants, clean the throttle
body and idle air passages, ALL new filters.

Your owners manual has a schedule of service, follow the "Severe Service"
recommendations, use ONLY the correct fluids, not what you see advertised
and good quality filters.

For example: Nothing made by Prestone meets current or past DC specs, Fram
oil filters meet ONLY the minimum specifications but sell at a premium
price.

"Steve Landis" <sdotlandisatcomcastdotnet> wrote in message
news:qqKdnaCcdvIam43bnZ2dnUVZ_uOmnZ2d (AT) comcast (DOT) com...
I have run the 20 oz size of Techron through the tank and didn't notice
any improvement. Engine has 127K on it BTW.
What else is there to do for a tune-up? No distributor, rotor, points,
condenser, coil to change out. Fuel filter is in the tank. What am I
missing? Thanks again.

Steve

billy ray wrote:
Try running can of SeaFoam through a vacuum line to clean the upper
engine of carbon and perhaps another full can into the gas tank to clean
the injectors.

If you haven't done a tune-up in the past 2 years/24k you are overdue
for service. Do the SeaFoam before replacing the spark plugs and use
the 'old fashioned' copper plugs, they seem to do better in Jeep engines
than the new high-tech ones in many cases..

SeaFoam Carbon Cleaning
http://s112.photobucket.com/albums/n...m%20Treatment/

Fuel System Cleaning
http://s112.photobucket.com/albums/n...or%20Cleaning/

"Steve Landis" <sdotlandisatcomcastdotnet> wrote in message
news:LqmdnV5uwrHIX5LbnZ2dnUVZ_uCinZ2d (AT) comcast (DOT) com...
Engine pings under load going up steep grades at various speeds. Have
been using 87 octane on a regular basis - pun intended - switching to
higher octane doesn't seem to make any difference.
Changing the air filter and plugs. What else should I be looking at?
Coil rail system thus no distributor or coil to mess with. I believe
that the timing is controlled by the PCM. Will I need to have the
timing checked/reset at the dealership? Thanks.

Steve

Switch to a major brand fuel, the premium for their stronger cleaners,
that should knock off the carbon deposits, that's pre igniting your rot sh*t
now, then drop to that station's 87 no alcohol if you can find it.
God Bless America, Bill 0|||||||0
mailto:LWHughes3rd (AT) aol (DOT) com http://www.billhughes.com/


"Steve Landis" <sdotlandisatcomcastdotnet> wrote

Engine pings under load going up steep grades at various speeds. Have
been using 87 octane on a regular basis - pun intended - switching to
higher octane doesn't seem to make any difference.
Changing the air filter and plugs. What else should I be looking at?
Coil rail system thus no distributor or coil to mess with. I believe
that the timing is controlled by the PCM. Will I need to have the timing
checked/reset at the dealership? Thanks.

Steve

--
Posted via a free Usenet account from http://www.teranews.com

On Apr 1, 5:00 pm, "billy ray" <billy_... (AT) SPAMfuse (DOT) net> wrote:

Also...
Techron makes two formulations.
Techron Cleaner which is the concentrated stuff and Cleaner with Techron
which is the diluted stuff.

If you are having drivability problems it wouldn't hurt to do the fuel
system cleaning twice.

"billy ray" <billy_... (AT) SPAMfuse (DOT) net> wrote in message

news:9b62a$46101bad$4831bf01$20255 (AT) FUSE (DOT) NET...



Spark plugs, ALL the fluids and ALL the lubricants, clean the throttle
body and idle air passages, ALL new filters.

Your owners manual has a schedule of service, follow the "Severe Service"
recommendations, use ONLY the correct fluids, not what you see advertised
and good quality filters.

For example: Nothing made by Prestone meets current or past DC specs, Fram
oil filters meet ONLY the minimum specifications but sell at a premium
price.

"Steve Landis" <sdotlandisatcomcastdotnet> wrote in message
news:qqKdnaCcdvIam43bnZ2dnUVZ_uOmnZ2d (AT) comcast (DOT) com...
I have run the 20 oz size of Techron through the tank and didn't notice
any improvement. Engine has 127K on it BTW.
What else is there to do for a tune-up? No distributor, rotor, points,
condenser, coil to change out. Fuel filter is in the tank. What am I
missing? Thanks again.

Steve

billy ray wrote:
Try running can of SeaFoam through a vacuum line to clean the upper
engine of carbon and perhaps another full can into the gas tank to clean
the injectors.

If you haven't done a tune-up in the past 2 years/24k you are overdue
for service. Do the SeaFoam before replacing the spark plugs and use
the 'old fashioned' copper plugs, they seem to do better in Jeep engines
than the new high-tech ones in many cases..

SeaFoam Carbon Cleaning
http://s112.photobucket.com/albums/n...Carbon-SeaFoam...

Fuel System Cleaning
http://s112.photobucket.com/albums/n...Fuel%20Injecto...

"Steve Landis" <sdotlandisatcomcastdotnet> wrote in message
What oil filters do you recommend? It is hard to get to the dealer

(and every time I go for parts, I forget to get filters) so I like
Kralinator, but Fram are easy to get off the shelf at Wal-Mart

Merrill

news:LqmdnV5uwrHIX5LbnZ2dnUVZ_uCinZ2d (AT) comcast (DOT) com...
Engine pings under load going up steep grades at various speeds. Have
been using 87 octane on a regular basis - pun intended - switching to
higher octane doesn't seem to make any difference.
Changing the air filter and plugs. What else should I be looking at?
Coil rail system thus no distributor or coil to mess with. I believe
that the timing is controlled by the PCM. Will I need to have the
timing checked/reset at the dealership? Thanks.

Steve- Hide quoted text -

- Show quoted text -

merrill wrote:
<snip>

What oil filters do you recommend? It is hard to get to the dealer
(and every time I go for parts, I forget to get filters) so I like
Kralinator, but Fram are easy to get off the shelf at Wal-Mart
snip

I use Wix oil filters and Castrol dino 10W-30 every 3K

Steve

merrill wrote:

What oil filters do you recommend? It is hard to get to the dealer
(and every time I go for parts, I forget to get filters) so I like
Kralinator, but Fram are easy to get off the shelf at Wal-Mart

Merrill

It has been widely reported and I got first hand experience last summer
with a serious drain back issue on the Fram filters.

I had just finished a hard 3000 mile run in my CJ7 so I changed the oil
out and bought the 'on sale' filter at the local auto place.

Well, I started having bad starts with a 'lot' of valve lifter noise so
I thought I wore out the old engine until I read a thread on the Fram
and remembered I had on in now.

I changed the filter and all the bad start up noises went away.

As far as the 'ping' goes, have you checked the clutch on the rad fan if
it has one? When they wear out, they make some strange clicks and noises.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
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