88 xj Choking
05-05-2006, 11:06 AM
#21
Guest
Posts: n/a
Re: 88 xj Choking
The thing is I had the distributor off 2 days ago because I was told
that they rust up a little this time of year because of the humidity
here. I replaced the distributor, rotor, plugs, and plug wires less
than three months ago and replaced the ignition coil 2 days ago.
that they rust up a little this time of year because of the humidity
here. I replaced the distributor, rotor, plugs, and plug wires less
than three months ago and replaced the ignition coil 2 days ago.
05-05-2006, 11:06 AM
#22
Guest
Posts: n/a
Re: 88 xj Choking
The thing is I had the distributor off 2 days ago because I was told
that they rust up a little this time of year because of the humidity
here. I replaced the distributor, rotor, plugs, and plug wires less
than three months ago and replaced the ignition coil 2 days ago.
that they rust up a little this time of year because of the humidity
here. I replaced the distributor, rotor, plugs, and plug wires less
than three months ago and replaced the ignition coil 2 days ago.
05-05-2006, 11:24 AM
#23
Guest
Posts: n/a
Re: 88 xj Choking
Good point. What fuel is in it? My 4.2 engine bogs bad on alcohol
mixes and my owners manual for my 88 XJ warns of possible engine bog or
loss of power when using a 10% alcohol mix.
The knock sensor is supposed to help with that...
The OP can hit on the manifold with a hammer of the warmed engine to see
if the engine gives a little stumble. If it does, the knock sensor is
working. Another test is to use a timing light when you hit it. The
mark on the crank pulley will move.
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!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
spydey wrote:
>
> A customer of mine came in and had the same problem. Ended up being
> the knock sensor on the right side of the engine screwed into the block
> right near the seam of the oil pan and block.
>
> Jesse
mixes and my owners manual for my 88 XJ warns of possible engine bog or
loss of power when using a 10% alcohol mix.
The knock sensor is supposed to help with that...
The OP can hit on the manifold with a hammer of the warmed engine to see
if the engine gives a little stumble. If it does, the knock sensor is
working. Another test is to use a timing light when you hit it. The
mark on the crank pulley will move.
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!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
spydey wrote:
>
> A customer of mine came in and had the same problem. Ended up being
> the knock sensor on the right side of the engine screwed into the block
> right near the seam of the oil pan and block.
>
> Jesse
05-05-2006, 11:24 AM
#24
Guest
Posts: n/a
Re: 88 xj Choking
Good point. What fuel is in it? My 4.2 engine bogs bad on alcohol
mixes and my owners manual for my 88 XJ warns of possible engine bog or
loss of power when using a 10% alcohol mix.
The knock sensor is supposed to help with that...
The OP can hit on the manifold with a hammer of the warmed engine to see
if the engine gives a little stumble. If it does, the knock sensor is
working. Another test is to use a timing light when you hit it. The
mark on the crank pulley will move.
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!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
spydey wrote:
>
> A customer of mine came in and had the same problem. Ended up being
> the knock sensor on the right side of the engine screwed into the block
> right near the seam of the oil pan and block.
>
> Jesse
mixes and my owners manual for my 88 XJ warns of possible engine bog or
loss of power when using a 10% alcohol mix.
The knock sensor is supposed to help with that...
The OP can hit on the manifold with a hammer of the warmed engine to see
if the engine gives a little stumble. If it does, the knock sensor is
working. Another test is to use a timing light when you hit it. The
mark on the crank pulley will move.
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!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
spydey wrote:
>
> A customer of mine came in and had the same problem. Ended up being
> the knock sensor on the right side of the engine screwed into the block
> right near the seam of the oil pan and block.
>
> Jesse
05-05-2006, 11:24 AM
#25
Guest
Posts: n/a
Re: 88 xj Choking
Good point. What fuel is in it? My 4.2 engine bogs bad on alcohol
mixes and my owners manual for my 88 XJ warns of possible engine bog or
loss of power when using a 10% alcohol mix.
The knock sensor is supposed to help with that...
The OP can hit on the manifold with a hammer of the warmed engine to see
if the engine gives a little stumble. If it does, the knock sensor is
working. Another test is to use a timing light when you hit it. The
mark on the crank pulley will move.
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!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
spydey wrote:
>
> A customer of mine came in and had the same problem. Ended up being
> the knock sensor on the right side of the engine screwed into the block
> right near the seam of the oil pan and block.
>
> Jesse
mixes and my owners manual for my 88 XJ warns of possible engine bog or
loss of power when using a 10% alcohol mix.
The knock sensor is supposed to help with that...
The OP can hit on the manifold with a hammer of the warmed engine to see
if the engine gives a little stumble. If it does, the knock sensor is
working. Another test is to use a timing light when you hit it. The
mark on the crank pulley will move.
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!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
spydey wrote:
>
> A customer of mine came in and had the same problem. Ended up being
> the knock sensor on the right side of the engine screwed into the block
> right near the seam of the oil pan and block.
>
> Jesse
05-05-2006, 11:25 AM
#26
Guest
Posts: n/a
Re: 88 xj Choking
Did he get the right O2 sensor? The originals are defective. You can
phone Chrysler and give them your VIN to find out if the recall has been
performed. If it hasn't, it wouldn't hurt to have them do it.
Mike
AWantz wrote:
>
> Well the previous owner replaced it and gave me a spare one so I'll
> try that in a couple hours.
phone Chrysler and give them your VIN to find out if the recall has been
performed. If it hasn't, it wouldn't hurt to have them do it.
Mike
AWantz wrote:
>
> Well the previous owner replaced it and gave me a spare one so I'll
> try that in a couple hours.
05-05-2006, 11:25 AM
#27
Guest
Posts: n/a
Re: 88 xj Choking
Did he get the right O2 sensor? The originals are defective. You can
phone Chrysler and give them your VIN to find out if the recall has been
performed. If it hasn't, it wouldn't hurt to have them do it.
Mike
AWantz wrote:
>
> Well the previous owner replaced it and gave me a spare one so I'll
> try that in a couple hours.
phone Chrysler and give them your VIN to find out if the recall has been
performed. If it hasn't, it wouldn't hurt to have them do it.
Mike
AWantz wrote:
>
> Well the previous owner replaced it and gave me a spare one so I'll
> try that in a couple hours.
05-05-2006, 11:25 AM
#28
Guest
Posts: n/a
Re: 88 xj Choking
Did he get the right O2 sensor? The originals are defective. You can
phone Chrysler and give them your VIN to find out if the recall has been
performed. If it hasn't, it wouldn't hurt to have them do it.
Mike
AWantz wrote:
>
> Well the previous owner replaced it and gave me a spare one so I'll
> try that in a couple hours.
phone Chrysler and give them your VIN to find out if the recall has been
performed. If it hasn't, it wouldn't hurt to have them do it.
Mike
AWantz wrote:
>
> Well the previous owner replaced it and gave me a spare one so I'll
> try that in a couple hours.
05-05-2006, 11:27 AM
#29
Guest
Posts: n/a
Re: 88 xj Choking
How did it look? If you shine a bright light inside and see anything
that looks like spider web marks, you have a spark jump.
Mike
AWantz wrote:
>
> The thing is I had the distributor off 2 days ago because I was told
> that they rust up a little this time of year because of the humidity
> here. I replaced the distributor, rotor, plugs, and plug wires less
> than three months ago and replaced the ignition coil 2 days ago.
that looks like spider web marks, you have a spark jump.
Mike
AWantz wrote:
>
> The thing is I had the distributor off 2 days ago because I was told
> that they rust up a little this time of year because of the humidity
> here. I replaced the distributor, rotor, plugs, and plug wires less
> than three months ago and replaced the ignition coil 2 days ago.
05-05-2006, 11:27 AM
#30
Guest
Posts: n/a
Re: 88 xj Choking
How did it look? If you shine a bright light inside and see anything
that looks like spider web marks, you have a spark jump.
Mike
AWantz wrote:
>
> The thing is I had the distributor off 2 days ago because I was told
> that they rust up a little this time of year because of the humidity
> here. I replaced the distributor, rotor, plugs, and plug wires less
> than three months ago and replaced the ignition coil 2 days ago.
that looks like spider web marks, you have a spark jump.
Mike
AWantz wrote:
>
> The thing is I had the distributor off 2 days ago because I was told
> that they rust up a little this time of year because of the humidity
> here. I replaced the distributor, rotor, plugs, and plug wires less
> than three months ago and replaced the ignition coil 2 days ago.