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This is beginning to get expensive. I have a new battery (probably not connected to this issue) and numerous new engine sensors and I have just fitted a new MAP Sensor. Now the battery is flat again. There is something draining the battery while the car is stood. Oddly enough I can't pick...

I have actually found the complete (I think) set of genuine Jeep wiring diagrams and the workshop manual. Each section is a separate pdf, 41 sections in all. It's a big document, 92 MB. I have worked my way through some of the individual pages of the wiring diagrams but haven't found out if...

Hi all, I have been progressing through all the sensors. I have ordered a new MAP sensor as it did not seem to work when I put vacuum on it. Unfortunately that is now lost between here and Germany. I now have yet another problem. The (brand new) battery was totally flat yesterday. Checking...

Got a problem using quick reply. It won't go, so it's on here as well. I did try to unscrew it but gave up as it just would not move even after soaking with diesel for a couple of days and applying heat. If I destroyed it I doubt I could get another. So I chickened out. I might have a...

I have been looking into all the other sensors. I have got a new water temp one on order as the car boiled up just after the test so I'm assuming the one on the thermostat housing is the culprit. I have also been looking at the temperature sensor on the cat that could be an oxygen sensor but...

I have never seen an OBD plug on my Jeep but I'll have a look tomorrow. I thought it was too early (1994) for that. I have always used the flashing check engine light to get the codes. I have been working my way through the sensors trying to find something dodgy, but no luck so far. The...

You are following my thought process. As far as I know the Lambda (O2) sensor has never been changed. There is only one, in the exhaust downpipe. I was already considering changing it as that seems to be the most likely culprit. I hope I can get one locally, but Spain is not very good in the...

Here is my latest update. IT FAILED THE TEST. Lots of thoughts as to why. Did I not put enough Alcohol in the tank, has something else gone wrong? The result was quite a bit worse than last year. Here are the figures. Pass figure is 0.3% CO. Last year's result 0.29% CO. This year's...

Thanks everyone for all the suggestions. The alcohol is going into the tank today and I'll go for a run to see if there is any difference. I have done a test with my gas tester and will do another when the alcohol has had a chance to get round the system. It won't be as accurate as the test...

Many thanks for the info. I have found out where I can get it here in Spain. It seems supermarkets are the places to look. Its called alcohol isopropilico. So I'm off out this morning to get a gallon. The test is not due for 3 weeks so I'll add it to the tank a few days before the test. I...

I forgot to ask. How much rubbing alcohol do you add to a gallon of petrol? (gas)

Rubbing alcohol threw me a bit because of the different terminology on this side of the pond. We call it surgical spirit or Isopropyl Alcohol. Google says it's used for cleaning but I have never come across it being used as a cleaner in the UK. I have now got to try to find a supply of it here...

Many thanks for the reply. Yes, I did the conversion myself. It has two 60lit tanks in the back and is a system made by Tartarini, it's a Tech 97. Tartarini are one of the biggest manufacturers of LPG equipment around and many other manufacturers are Italy based. The system is not multi...

The time has come again for the annual test on my 1994 XJ. Last year it just squeaked through by 0.1%. This year I feel that it might not make it at all. Can anyone suggest ways that will cut the emissions. I have tried all sorts with little success, so ANY SUGGESTIONS will be welcome. Just...

As is often said two countries divided by common language. Here's an update. I still have the problem. I have replaced the front 'sway bar' bushes with polyprop ones and all other bushes nearby as well, no change, in fact it's got worse as even normal cornering makes the clunk now. I don't...

As is often said two countries divided by common language. Here's an update. I still have the problem. I have replaced the front 'sway bar' bushes with polyprop ones and all other bushes nearby as well, no change, in fact it's got worse as even normal cornering makes the clunk now. I don't...

Thanks for all the suggestions. That will give be something to check out over the weekend. I hadn't actually thought of this particular part. As a Brit, the American terminology caused us to think a bit. Thank heavens for Google. We call them anti-roll bars. I have already got front bushes...

Recently my Cherokee has been knocking at the back end when cornering or going round roundabouts. It knocks when you go one way and it knocks when you go back. It literally sounds like someone hammering on the chassis, very loud. We have crawled around underneath checking everything. Springs...

My Cherokee is on LPG (propane) and I noticed a whiff of gas at the back end today. It's got two 60lit tanks in the back which are vented to the outside. I found that one of the safety valves had started weeping. Legally they have to be swapped every two or three years, mine haven't been...

Thanks for the advice. I give all the suggestions a try over the weekend. I would still like to get hold of the section of the manual that tells you all about it.