2000 XJ Starting Problems
#21
Guest
Posts: n/a
Re: 2000 XJ Starting Problems
DRRanchTx did pass the time by typing:
> hnks for the reply....do I need to remove the senser from the body of the
> throttle or just where the plug meets the unit and spray there
Get some contact cleaner that is safe for plastic.
Before you spray the contacts, put some paper towel around and use a bit
of cardboard to keep any of the contact cleaner off of the paint. Contact
cleaner is very good paint remover. It's also a very good idea to wear
eye protection.
Disconnect the plug, spray the contacts, work them a bit with a
toothpick, spray again, let dry, then put a bit of dilectric grease
(sparkplug grease) in the socket and on the gasket. Then reassemble.
If your moderatly skilled with electronics and have a digital volt meter
you can test the TPS sensor. There are three leads. one is ground, one
is voltage, and the other varies as you move the throttle body.
Basically:
Turn the ignition on but do not start the jeep.
back-probe the connector and find the ground and +5v
(should be the outside two wires)
If there isn't 5v there then you might have a break in the harness
or just not a good contact with the wire.
Now measure the center wire against the ground.
Throttle butterfly Voltage
CLOSED >200 mV
OPEN <4.8 V
The transition between full open and closed should be smooth
with no jumps or dropouts.
--
DougW
> hnks for the reply....do I need to remove the senser from the body of the
> throttle or just where the plug meets the unit and spray there
Get some contact cleaner that is safe for plastic.
Before you spray the contacts, put some paper towel around and use a bit
of cardboard to keep any of the contact cleaner off of the paint. Contact
cleaner is very good paint remover. It's also a very good idea to wear
eye protection.
Disconnect the plug, spray the contacts, work them a bit with a
toothpick, spray again, let dry, then put a bit of dilectric grease
(sparkplug grease) in the socket and on the gasket. Then reassemble.
If your moderatly skilled with electronics and have a digital volt meter
you can test the TPS sensor. There are three leads. one is ground, one
is voltage, and the other varies as you move the throttle body.
Basically:
Turn the ignition on but do not start the jeep.
back-probe the connector and find the ground and +5v
(should be the outside two wires)
If there isn't 5v there then you might have a break in the harness
or just not a good contact with the wire.
Now measure the center wire against the ground.
Throttle butterfly Voltage
CLOSED >200 mV
OPEN <4.8 V
The transition between full open and closed should be smooth
with no jumps or dropouts.
--
DougW
#22
Guest
Posts: n/a
Re: 2000 XJ Starting Problems
DRRanchTx did pass the time by typing:
> hnks for the reply....do I need to remove the senser from the body of the
> throttle or just where the plug meets the unit and spray there
Get some contact cleaner that is safe for plastic.
Before you spray the contacts, put some paper towel around and use a bit
of cardboard to keep any of the contact cleaner off of the paint. Contact
cleaner is very good paint remover. It's also a very good idea to wear
eye protection.
Disconnect the plug, spray the contacts, work them a bit with a
toothpick, spray again, let dry, then put a bit of dilectric grease
(sparkplug grease) in the socket and on the gasket. Then reassemble.
If your moderatly skilled with electronics and have a digital volt meter
you can test the TPS sensor. There are three leads. one is ground, one
is voltage, and the other varies as you move the throttle body.
Basically:
Turn the ignition on but do not start the jeep.
back-probe the connector and find the ground and +5v
(should be the outside two wires)
If there isn't 5v there then you might have a break in the harness
or just not a good contact with the wire.
Now measure the center wire against the ground.
Throttle butterfly Voltage
CLOSED >200 mV
OPEN <4.8 V
The transition between full open and closed should be smooth
with no jumps or dropouts.
--
DougW
> hnks for the reply....do I need to remove the senser from the body of the
> throttle or just where the plug meets the unit and spray there
Get some contact cleaner that is safe for plastic.
Before you spray the contacts, put some paper towel around and use a bit
of cardboard to keep any of the contact cleaner off of the paint. Contact
cleaner is very good paint remover. It's also a very good idea to wear
eye protection.
Disconnect the plug, spray the contacts, work them a bit with a
toothpick, spray again, let dry, then put a bit of dilectric grease
(sparkplug grease) in the socket and on the gasket. Then reassemble.
If your moderatly skilled with electronics and have a digital volt meter
you can test the TPS sensor. There are three leads. one is ground, one
is voltage, and the other varies as you move the throttle body.
Basically:
Turn the ignition on but do not start the jeep.
back-probe the connector and find the ground and +5v
(should be the outside two wires)
If there isn't 5v there then you might have a break in the harness
or just not a good contact with the wire.
Now measure the center wire against the ground.
Throttle butterfly Voltage
CLOSED >200 mV
OPEN <4.8 V
The transition between full open and closed should be smooth
with no jumps or dropouts.
--
DougW
#23
Guest
Posts: n/a
Re: 2000 XJ Starting Problems
thanks to all...cleaned the contacts as well as the gummy throttle
body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
for money saved and this wonderful line of jeep folks...have a safe 4th
"DRRanchTx" <drranchtx@earthlink.net> wrote in message
news:4Ovpg.980$ye3.213@newsread1.news.pas.earthlin k.net...
> 2000 xj....hold gas petal down and engine starts....lift off foot and jeep
> stalls....this thing has no outside fuel filter ??...any help be greatly
> appreciated...
>
body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
for money saved and this wonderful line of jeep folks...have a safe 4th
"DRRanchTx" <drranchtx@earthlink.net> wrote in message
news:4Ovpg.980$ye3.213@newsread1.news.pas.earthlin k.net...
> 2000 xj....hold gas petal down and engine starts....lift off foot and jeep
> stalls....this thing has no outside fuel filter ??...any help be greatly
> appreciated...
>
#24
Guest
Posts: n/a
Re: 2000 XJ Starting Problems
thanks to all...cleaned the contacts as well as the gummy throttle
body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
for money saved and this wonderful line of jeep folks...have a safe 4th
"DRRanchTx" <drranchtx@earthlink.net> wrote in message
news:4Ovpg.980$ye3.213@newsread1.news.pas.earthlin k.net...
> 2000 xj....hold gas petal down and engine starts....lift off foot and jeep
> stalls....this thing has no outside fuel filter ??...any help be greatly
> appreciated...
>
body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
for money saved and this wonderful line of jeep folks...have a safe 4th
"DRRanchTx" <drranchtx@earthlink.net> wrote in message
news:4Ovpg.980$ye3.213@newsread1.news.pas.earthlin k.net...
> 2000 xj....hold gas petal down and engine starts....lift off foot and jeep
> stalls....this thing has no outside fuel filter ??...any help be greatly
> appreciated...
>
#25
Guest
Posts: n/a
Re: 2000 XJ Starting Problems
thanks to all...cleaned the contacts as well as the gummy throttle
body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
for money saved and this wonderful line of jeep folks...have a safe 4th
"DRRanchTx" <drranchtx@earthlink.net> wrote in message
news:4Ovpg.980$ye3.213@newsread1.news.pas.earthlin k.net...
> 2000 xj....hold gas petal down and engine starts....lift off foot and jeep
> stalls....this thing has no outside fuel filter ??...any help be greatly
> appreciated...
>
body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
for money saved and this wonderful line of jeep folks...have a safe 4th
"DRRanchTx" <drranchtx@earthlink.net> wrote in message
news:4Ovpg.980$ye3.213@newsread1.news.pas.earthlin k.net...
> 2000 xj....hold gas petal down and engine starts....lift off foot and jeep
> stalls....this thing has no outside fuel filter ??...any help be greatly
> appreciated...
>
#26
Guest
Posts: n/a
Re: 2000 XJ Starting Problems
Mindy did pass the time by typing:
> thanks to all...cleaned the contacts as well as the gummy throttle
> body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
> for money saved and this wonderful line of jeep folks...have a safe 4th
Glad to know that helped.
Have a safe 4th as well.
--
DougW
> thanks to all...cleaned the contacts as well as the gummy throttle
> body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
> for money saved and this wonderful line of jeep folks...have a safe 4th
Glad to know that helped.
Have a safe 4th as well.
--
DougW
#27
Guest
Posts: n/a
Re: 2000 XJ Starting Problems
Mindy did pass the time by typing:
> thanks to all...cleaned the contacts as well as the gummy throttle
> body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
> for money saved and this wonderful line of jeep folks...have a safe 4th
Glad to know that helped.
Have a safe 4th as well.
--
DougW
> thanks to all...cleaned the contacts as well as the gummy throttle
> body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
> for money saved and this wonderful line of jeep folks...have a safe 4th
Glad to know that helped.
Have a safe 4th as well.
--
DougW
#28
Guest
Posts: n/a
Re: 2000 XJ Starting Problems
Mindy did pass the time by typing:
> thanks to all...cleaned the contacts as well as the gummy throttle
> body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
> for money saved and this wonderful line of jeep folks...have a safe 4th
Glad to know that helped.
Have a safe 4th as well.
--
DougW
> thanks to all...cleaned the contacts as well as the gummy throttle
> body.....will do this to my 2001 Grand w/4.0 engine as well...thanks again
> for money saved and this wonderful line of jeep folks...have a safe 4th
Glad to know that helped.
Have a safe 4th as well.
--
DougW
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