Last post on Nov 05, 2013 at 12:21 AM
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Jeep Wrangler, Scheduled Maintenance, Steering, Suspension, Tires, SUV
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#37 of 1888 Re: Jeep Wrangler 1994 [dvinke]
Jan 25, 2006 (12:57 pm)
The blower motor is working fine but only blows cold air when the heater is on.
I've no in-depth knowledge of the HVAC system on the earlier Wranglers, but diagnosis is fairly simple.
First, when the coolant is up to working temperature, feel both the hoses linking the heater to the cooling system. One is a flow and the other is a return.
If one is hot and the other is cold there is no flow through the heater core. This will either be a blocked core or a faulty valve (if fitted), or even both.
If both hoses are hot the problem will be related to the blend door inside the HVAC housing. This door directs either hot or cold air, or a mix of both, through the air ducts.
Repair for any of the failure modes is self explanatory.
#38 of 1888 Re: Jeep wrangler [brian461]
Jan 27, 2006 (9:02 pm)
When you say the front end is hard, I'm assuming your talking about the ride being rough. Am I right? If so, have there been any suspension modifications done to this Jeep? Is it stock or lifted? If it's a really rough ride you're talking about, I'm hoping it's lifted. Stock YJ Wrangler springs are pretty soft. After lifting with arched leaf springs,and keeping it sprung-under, alot of people choose to go with a spring-over conversion while putting stock YJ springs back under the vehicle. The spring-over-axle (SOA) conversion allows for about the same amount of average lift Wrangler owners go for, which is round about 4". Arched leaf springs that come with alot of lifts allow for a better ride than a go-cart with no suspension at all, but not much. Stock YJ leaves also allow for alot more flex than arched leaves. You'll lift a tire alot more often while using arched lift springs. I own an '88 (same body style as yours; YJ) and I have about 6" of lift. It rides pretty rough but I'm used to it. It takes a long time to wear or break-in arched leaf packs! Anyway, post some more details about your Jeep if this doesn't seem to help you find your problem and I'll see what I can do. - dixiecrawler
#39 of 1888 Front wheel locked-up while driving
Jan 29, 2006 (10:21 am)
RE: 1992 Wrangler 4WD. My son just had a scary experience. As he was traveling ~35MPH, his right front wheel locked-up and spun the vehicle around the locked wheel, onto the right road shoulder. Fortunately, he was not going faster or he might have flipped. He said the only warning he had was a loud ‘clunk’ just before it locked up. After he collected himself, he tried to move the vehicle and heard the same ‘clunk’ again…he parked it.
What I find suspicious is that the previous owner (vehicle purchased less than 30 days ago), supposedly replaced the front wheel bearings before turning it over to my son.
Any experience and/or knowledge regarding this problem would be appreciated.
#40 of 1888 1997 jeep wrangler
Jan 30, 2006 (8:33 am)
I have this terrible odor in my jeep it seems to smell if the ac is not on you can smell it a little when the heat is on but its worse when nothing is on at all.
#41 of 1888 Re: 1997 jeep wrangler [mblack3]
Jan 30, 2006 (8:58 am)
I've no idea what it is, but if it's not being blown in by the HVAC unit, then that narrows down where it is.
Remove the carpets and let the Jeep air out. If the smell remains then remove the seats. If it's not the carpet or the seats, then tracking down the location of the smell using your nose should now be fairly easy.
#42 of 1888 Re: 1997 jeep wrangler [mblack3]
Jan 30, 2006 (9:00 am)
While you're waiting for a reply here you may want to browse through the messages in the archived discussion about mildew.
#43 of 1888 1997 jeep wrangler
Jan 30, 2006 (9:26 am)
we've narrowed it down to something with the heater or ac not the carpets. its not a mildew smell it smells like vomit
#44 of 1888 Re: 1997 jeep wrangler [mblack3]
Jan 30, 2006 (10:03 am)
we've narrowed it down to something with the heater or ac not the carpets.
I guess that I misunderstood your earlier statement "...it seems to smell if the ac is not on...... you can smell it a little when the heat is on..... but its worse when nothing is on at all."
If it is related the HVAC system then it either grew there, or was physically introduced i.e. someone threw up into it. If it contains vomit you'll have to clean it out (not fun), but if mould has grown inside the HVAC housing, maybe due to lack of use or a blocked condensate drain, then it can be treated with a antifungal/disinfecting spray. These vary in effectiveness depending on the type of mould and the frequency with which the A/C continues to be used. Why not get some advice from a local independent A/C specialist, as some of the sprays are designed to be injected through a hole drilled directly into a specific part of the housing.
#45 of 1888 Re: 1997 jeep wrangler [mac24]
Jan 30, 2006 (11:33 am)
thank you someone told me they had the same problem with the smell and it was the ac evaperator.
#46 of 1888 1997 tj wrangler
Jan 30, 2006 (11:36 am)
when i bought the jeep used the jack was missing.where is the jack stored while not in use under the hood or seat in need to buy on.