Re: 1990 Cherokee won't run over approx. 1500rpm
 

Thanks for all about the replys !
It is import model, i live in Finland.

I added extra ground cable from head to the firewall.
CPS wires are ok (not melted),i replaced the wires some time ago.
Exhaust/catalytic is not clogged,but i'll take a closer look.
I havent check manifold vacuum or fuel pressure yet.
Fuel filter,distributor rotor/cap are on the list to replace,right when
i can get them.
Where is MAF sensor located ?

Sami

Re: 1990 Cherokee won't run over approx. 1500rpm
 

Hmm....

In my book, the distributor cap, rotor, and the fuel filter would be the
'first' things to replace, not the last.....

You could have a 16 year old distributor cap in there and I will bet the
fuel filter 'is' 16 years old....

My 88 bogged down like that once. When I went to replace the fuel
filter, it literally crumbled to pieces.

The MAP sensor is on the firewall center on those I believe with one
vacuum line running to it.

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)

sami.lindgren@kotikone.fi wrote:
>
> Thanks for all about the replys !
> It is import model, i live in Finland.
>
> I added extra ground cable from head to the firewall.
> CPS wires are ok (not melted),i replaced the wires some time ago.
> Exhaust/catalytic is not clogged,but i'll take a closer look.
> I havent check manifold vacuum or fuel pressure yet.
> Fuel filter,distributor rotor/cap are on the list to replace,right when
> i can get them.
> Where is MAF sensor located ?
>
> Sami

Re: 1990 Cherokee won't run over approx. 1500rpm
 

Hmm....

In my book, the distributor cap, rotor, and the fuel filter would be the
'first' things to replace, not the last.....

You could have a 16 year old distributor cap in there and I will bet the
fuel filter 'is' 16 years old....

My 88 bogged down like that once. When I went to replace the fuel
filter, it literally crumbled to pieces.

The MAP sensor is on the firewall center on those I believe with one
vacuum line running to it.

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)

sami.lindgren@kotikone.fi wrote:
>
> Thanks for all about the replys !
> It is import model, i live in Finland.
>
> I added extra ground cable from head to the firewall.
> CPS wires are ok (not melted),i replaced the wires some time ago.
> Exhaust/catalytic is not clogged,but i'll take a closer look.
> I havent check manifold vacuum or fuel pressure yet.
> Fuel filter,distributor rotor/cap are on the list to replace,right when
> i can get them.
> Where is MAF sensor located ?
>
> Sami

Re: 1990 Cherokee won't run over approx. 1500rpm
 

Hmm....

In my book, the distributor cap, rotor, and the fuel filter would be the
'first' things to replace, not the last.....

You could have a 16 year old distributor cap in there and I will bet the
fuel filter 'is' 16 years old....

My 88 bogged down like that once. When I went to replace the fuel
filter, it literally crumbled to pieces.

The MAP sensor is on the firewall center on those I believe with one
vacuum line running to it.

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)

sami.lindgren@kotikone.fi wrote:
>
> Thanks for all about the replys !
> It is import model, i live in Finland.
>
> I added extra ground cable from head to the firewall.
> CPS wires are ok (not melted),i replaced the wires some time ago.
> Exhaust/catalytic is not clogged,but i'll take a closer look.
> I havent check manifold vacuum or fuel pressure yet.
> Fuel filter,distributor rotor/cap are on the list to replace,right when
> i can get them.
> Where is MAF sensor located ?
>
> Sami

Re: 1990 Cherokee won't run over approx. 1500rpm
 

Hmm....

In my book, the distributor cap, rotor, and the fuel filter would be the
'first' things to replace, not the last.....

You could have a 16 year old distributor cap in there and I will bet the
fuel filter 'is' 16 years old....

My 88 bogged down like that once. When I went to replace the fuel
filter, it literally crumbled to pieces.

The MAP sensor is on the firewall center on those I believe with one
vacuum line running to it.

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)

sami.lindgren@kotikone.fi wrote:
>
> Thanks for all about the replys !
> It is import model, i live in Finland.
>
> I added extra ground cable from head to the firewall.
> CPS wires are ok (not melted),i replaced the wires some time ago.
> Exhaust/catalytic is not clogged,but i'll take a closer look.
> I havent check manifold vacuum or fuel pressure yet.
> Fuel filter,distributor rotor/cap are on the list to replace,right when
> i can get them.
> Where is MAF sensor located ?
>
> Sami