| Author |
Message |
    
Brian Cockrell (Bjcockrell)
| | Posted on Wednesday, April 17, 2002 - 11:57 am: | 
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I have a 96' Disco and I believe the oxygen sensors are on their way out. (No power going up hills). How many oxygen sensors are on the car (2 I think)? and is it difficult to change the sensors? I have performed other routine maintenance like brake pads and thermostat but have no experience with the sensors. |
Leslie N. Bright (Leslie)
| | Posted on Wednesday, April 17, 2002 - 01:21 pm: |
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4 of 'em.
Not too hard.... if you can handle those other things, you can handle this. Just be careful doing it, don't over tighten, etc.... It's basically unplug, uncrew & remove, insert and tighten, plug in...
If you use anti-seize, don't get it on the sensor part.
If you use the search function, you'll find a lot on 'em, been discussed a lot....
-L |
doug james (Dgj95lwb)
| | Posted on Wednesday, April 17, 2002 - 06:55 pm: |
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How many miles on your truck ?
IF no power up hills, and at your age (MY'96) you could expect the vacuum advance to be history. They fail with heat degrading the rubber diaphram, and the vac lines too. Make sure it is fine before even suspecting the sensors. $90.00 at RN, or Motorcars,LTD. Nathan too.
Start with this first! Confirm ignition timing next. Sensors are down the list...IMHO, doug 95 lwb @ 100k(new vac unit: now ROARIN' up hills, before,... huffin' and puffin') |
Garrett #2
| | Posted on Friday, April 19, 2002 - 10:56 am: |
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What does the Vaccum unit look like on a 1996 Disco and how do you check it?? |
Bill Bettridge (Billb)
| | Posted on Friday, April 19, 2002 - 02:51 pm: |
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Depends on build date - Gems trucks were built starting early 96.
If you have a distributor in the front - it has a vacuum advance on it (base of distributor with a rubber vacuum line attached to it), if not and you have coil packs in the back, then you have a GEMS motor and no vac advance.
Bill |
Martin Eva
| | Posted on Friday, April 19, 2002 - 06:33 pm: |
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Brian
I would be sure its the sensors before changing them. I dont know about in the US, but here in the UK they are over £100 each as they are Titania type.
O2 sensors do fail, but at that sort of money its worth getting them properley checked out first
Martin Eva
95 V8iES Disco on LPG |
Ron
| | Posted on Saturday, April 20, 2002 - 02:58 am: |
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"Gems trucks were built starting early 96"
ALL model year 96 discos were GEMS in the US. They started building them in late 95. You do not have a vacuum advance unit if you do not have a dizzy on it.
Ron |
Ron
| | Posted on Saturday, April 20, 2002 - 03:00 am: |
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No power up hills I would be looking a fuel pump/fuel filter and then looking at valves and then O2s (you getting a check engine light?)
Ron |
Phillip Miller
| | Posted on Sunday, April 21, 2002 - 07:10 am: |
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Question - if there are four O2 sensors, where are they. I know that there are two on the exhaust; what about the other two? Is it only the GEMS engines that have four, or all engines? Is there any way to clean/rebuild the O2 sensors or is complete replacement the only option. LR's maintenance schedule for a '98 disco. says "Replace oxygen sensors and reset service reminder" is a "Required emissions maintenance" at 82,500 miles. |
Ron
| | Posted on Monday, April 22, 2002 - 05:30 am: |
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They can be cleaned but you need to know if they are slow or if they are dead. It is not worth it to try to clean them as it rarely cures the problem.
All four are in the exhaust. Two in front of the cats two behind the cats. 95 and earlier have 2. There are two types you could have on a GEMS truck depending on the emissions system.
You can generally go much more than 82.5K on O2s, but the only way to know FOR SURE is to hook it up to testbook. O2s can go bad and not throw codes, they just will be inaccurate enough to mess things up but not enough to throw a code. Anyway now that i confused the heck out of you why do you think you need O2s again?
Ron |
jmon
| | Posted on Monday, April 22, 2002 - 07:10 pm: |
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hey guys, i have been following along on this post..and after reading some of your responses i have some questions...i recently replaced, all plugs, wires, cap and rotor..before this i was experiencing a slight backfire and rough idle..very rough..turned out it was a bad wire..while this was happening i had the code 44 come up...changed everything and reset the code..nothing came on for the next two weeks..all the symptoms were gone except the rough idle..now it does not happen all of the time and it is slight..but the code came back..this time a 45..the other o2 sensor...any ideas...on what could be causing the rought idle? and who do i tell if my o2 sensors are bad? thanks |
Brian Cockrell (Bjcockrell)
| | Posted on Tuesday, April 23, 2002 - 11:33 am: |
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Before I replace the O2 sensors, I have ordered the following and will replace the: spark plugs, plug wires, and fuel filter. If this doesn't work then I was thinking the O2 sensors. My truck has 110K miles. The Check Engine light comes on occassionally, but lately it has been off. So it sounds like I do not have vacuum advance on my year (US96).
Brian |
Brian Cockrell (Bjcockrell)
| | Posted on Tuesday, April 23, 2002 - 11:36 am: |
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BTW, where is the fuel filter located? Is the hayne's manual worth money? |
PerroneFord
| | Posted on Tuesday, April 23, 2002 - 11:46 am: |
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Fuel filter... look in the wheel well on the passenger side rear. It's attached to the frame.
Haynes manual is barely worth the money. I got one before getting the shop manual. It really does leave you wantting for more on most repairs. Bite the bullet and get the shop manual.
-P |
p m
| | Posted on Tuesday, April 23, 2002 - 12:30 pm: |
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Brian,
no, Haynes manual isn't worth the money for the 96. It doesn't cover anything about your engine.
check the DW for sale board, there was a fellow who was selling RAVE CDs. At the cost of a hard-cover useless Haynes, you get a whole wealth of info.
peter |
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