Carl wrote:
> Before buying a new one, I would pull the old one and test it directly from
> the battery. BTW, my girlfriend likes to 'fix' me like that, too.
>
> Carl
>
>
> <fraserwag@yahoo.com> wrote in message
> news:1157296466.356597.171980@e3g2000cwe.googlegro ups.com...
> >
> > D wrote:
> >> I fixed my '93 Grand Cherokee by just cleaning out the cage. It would
> >> work
> >> on high but not low or second. It didn't have a lot of debris in it, just
> >> a
> >> couple small leaves, but it made a world of difference just pulling it
> >> down
> >> and cleaning it out.
> >> My 2 cents.
> >> D
> >> Oh, my wife is a dashboard slugger too. Same thing, she'd fix it by
> >> slugging. (fixes me too sometimes)
> >>
> >>
> >> <fraserwag@yahoo.com> wrote in message
> >> news:1157245906.213706.30540@i3g2000cwc.googlegrou ps.com...
> >> > My 94 4.0L Jeep Cherokee has developed a blower motor problem.
> >> >
> >> > This started out as intermittency. I'd start the jeep, and turn on
> >> > the AC, but the blower would not come on. I would feel cold air at the
> >> > vents. After driving for a while, the blower would come on and run
> >> > just fine. My wife advised me that hitting the dash would also
> >> > occasionally turn it on.
> >> >
> >> > This week, the blower has refused to come on at all, either for vent,
> >> > AC or Heat. I can still hear the AC kicking up.
> >> >
> >> > I replaced the blower motor speed switch, but still no airflow. I
> >> > followed the wiring down to the blower resistor block, and I see strong
> >> > voltage at the twin green wires. I've checked all the fuses in the
> >> > interior and engine compartment, all ok.
> >> >
> >> > Is there a relay on this year model for the blower that I've failed
> >> > to find? If so, where would I look? The intermittent behavior makes
> >> > me suspect a relay, but my Haynes manual is pretty useless on this
> >> > point.
> >> >
> >> > If there is no relay, how would I access the blower motor to check it
> >> > out? Looking under the passenger footwell, I can see the squirrel
> >> > cage, but I've no idea how I'd get to the motor.
> >> >
> >> > Thanks very much.
> >> >
> >> > S
> >> >
> >
> > Thanks D. Maybe our wives are related.... :-)
> >
> > Made a little progress on this. I found the blower motor. It was
> > hiding in the engine compartment, passenger side, behind the washer
> > fluid bottle. I was able to find the connector for it, so I pulled it
> > apart. I ran a couple of jumper wires directly from the battery into
> > the motor-side of the connector, and nothing happened. This looks to
> > me like the blower motor has died. Local parts shop has one for 30
> > bucks, so I'll go get one, and see if this solves the issue.
> >
> > Thanks for the help.
> >
> > S.

Success! The blower motor was intermittent. As soon as I got access
to it, I stuck a couple jumpers on it direct from the battery, and the
sucker wouldn't turn. Once I pulled it out, I repeated the test, and
at first it did nothing, but then suddenly caught.

While it wasn't too difficult a repair once diagnosed, I decided I'd
replace the motor anyway, as for 30 bucks, at least I'd have new parts
in there with a lifetime guarantee.

The squirrel cage had a really gross accumulation of crud on it.
Solidified dust, that was almost greasy in consistency. I had to
pretty much scrape it off, took about 30 minutes.

Once I added the now pristine squirrel cage to it, I gave the new motor
the direct to battery check before I installed it, and is spun right
up, so I proceeded to install. One of the 3 small bolts that holds the
motor to the firewall is a little close to the sheetmetal, but a few
choice curse words and a thin, deep 1/4" socket got me worked around
that issue.

The wife just took the jeep to the convenience store, and gave me a
call on the cell phone, telling me it hasn't blown air this cold or
well for years. Even brought me an ice cream home in
gratitude....maybe I should do more of the stuff on my honey-do
list.... :-)

Thanks again to all for their help, I appreciate your time, and all the
suggestions.

S.
> >

 

Carl wrote:
> Before buying a new one, I would pull the old one and test it directly from
> the battery. BTW, my girlfriend likes to 'fix' me like that, too.
>
> Carl
>
>
> <fraserwag@yahoo.com> wrote in message
> news:1157296466.356597.171980@e3g2000cwe.googlegro ups.com...
> >
> > D wrote:
> >> I fixed my '93 Grand Cherokee by just cleaning out the cage. It would
> >> work
> >> on high but not low or second. It didn't have a lot of debris in it, just
> >> a
> >> couple small leaves, but it made a world of difference just pulling it
> >> down
> >> and cleaning it out.
> >> My 2 cents.
> >> D
> >> Oh, my wife is a dashboard slugger too. Same thing, she'd fix it by
> >> slugging. (fixes me too sometimes)
> >>
> >>
> >> <fraserwag@yahoo.com> wrote in message
> >> news:1157245906.213706.30540@i3g2000cwc.googlegrou ps.com...
> >> > My 94 4.0L Jeep Cherokee has developed a blower motor problem.
> >> >
> >> > This started out as intermittency. I'd start the jeep, and turn on
> >> > the AC, but the blower would not come on. I would feel cold air at the
> >> > vents. After driving for a while, the blower would come on and run
> >> > just fine. My wife advised me that hitting the dash would also
> >> > occasionally turn it on.
> >> >
> >> > This week, the blower has refused to come on at all, either for vent,
> >> > AC or Heat. I can still hear the AC kicking up.
> >> >
> >> > I replaced the blower motor speed switch, but still no airflow. I
> >> > followed the wiring down to the blower resistor block, and I see strong
> >> > voltage at the twin green wires. I've checked all the fuses in the
> >> > interior and engine compartment, all ok.
> >> >
> >> > Is there a relay on this year model for the blower that I've failed
> >> > to find? If so, where would I look? The intermittent behavior makes
> >> > me suspect a relay, but my Haynes manual is pretty useless on this
> >> > point.
> >> >
> >> > If there is no relay, how would I access the blower motor to check it
> >> > out? Looking under the passenger footwell, I can see the squirrel
> >> > cage, but I've no idea how I'd get to the motor.
> >> >
> >> > Thanks very much.
> >> >
> >> > S
> >> >
> >
> > Thanks D. Maybe our wives are related.... :-)
> >
> > Made a little progress on this. I found the blower motor. It was
> > hiding in the engine compartment, passenger side, behind the washer
> > fluid bottle. I was able to find the connector for it, so I pulled it
> > apart. I ran a couple of jumper wires directly from the battery into
> > the motor-side of the connector, and nothing happened. This looks to
> > me like the blower motor has died. Local parts shop has one for 30
> > bucks, so I'll go get one, and see if this solves the issue.
> >
> > Thanks for the help.
> >
> > S.

Success! The blower motor was intermittent. As soon as I got access
to it, I stuck a couple jumpers on it direct from the battery, and the
sucker wouldn't turn. Once I pulled it out, I repeated the test, and
at first it did nothing, but then suddenly caught.

While it wasn't too difficult a repair once diagnosed, I decided I'd
replace the motor anyway, as for 30 bucks, at least I'd have new parts
in there with a lifetime guarantee.

The squirrel cage had a really gross accumulation of crud on it.
Solidified dust, that was almost greasy in consistency. I had to
pretty much scrape it off, took about 30 minutes.

Once I added the now pristine squirrel cage to it, I gave the new motor
the direct to battery check before I installed it, and is spun right
up, so I proceeded to install. One of the 3 small bolts that holds the
motor to the firewall is a little close to the sheetmetal, but a few
choice curse words and a thin, deep 1/4" socket got me worked around
that issue.

The wife just took the jeep to the convenience store, and gave me a
call on the cell phone, telling me it hasn't blown air this cold or
well for years. Even brought me an ice cream home in
gratitude....maybe I should do more of the stuff on my honey-do
list.... :-)

Thanks again to all for their help, I appreciate your time, and all the
suggestions.

S.
> >