Birty Dastards Jeep Club
Tech Forum => Workshop => Topic started by: 72 watch on January 09, 2011, 04:59:27 PM
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hi guys i was told the temperture sender is on the back of the cylinderhead on a 1993 wrangler jeep 2.5 petrol. i looked today and no sender as i can see is on the back of the head and no wire going there . i only have the engine management light one in the thermostate housing. i have messeged a member on here who told me it was there just to say i cant see it .just thought i would post it to see if any one else could throw some light on were or wots happend to it. regards paul
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http://www.jeepforum.com/forum/f12/coolant-temp-error-code-but-sensor-tests-fine-891576/ (http://www.jeepforum.com/forum/f12/coolant-temp-error-code-but-sensor-tests-fine-891576/)
hope this helps.part way down the page (second post down)
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wot do you mean part way down the page im lost
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dont worry, he stuck a duff picture in, no doubt will return and fix it
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Try this one..... (https://birtydastards.com/frm/proxy.php?request=http%3A%2F%2Fi702.photobucket.com%2Falbums%2Fww27%2Fmeanmax%2FYJ%2520Mechanical%2FP1000189.jpg&hash=893b2bc2063fef9cd55720ada51e37f9f76ce73e)
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hi just had a look at the picture were it is but its defently not there no lead going to were that one shows. my vehicle is the yj sqaure headlight one. is there any were else they fitted them on the 2.5 petrol engine , its doin my head in .any more suggestions pleassseee
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where are you? or can you take a pic of your engine and we will point it out.
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hi mike that diagram you posted for me to seee is the sender unit were the blue bubble with the writing in is it were the arrow bit is pointing to that black thing stickin up to the right of the ballon messege.cheers paul
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hi guys i will take a photo of the engine tomoz but it will be late tomoz b4 i can post it as i work till ten .thanx for your help.this site is awsome .
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hi mike that diagram you posted for me to seee is the sender unit were the blue bubble with the writing in is it were the arrow bit is pointing to that black thing stickin up to the right of the ballon messege.cheers paul
That is a picture of a 2.5YJ. I wonder if someone's fitted a later engine, they don't have the rear mounted sender, in which case you're fooked.
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can't remember if my 2.5 151 ci engine had it fitted elsewhere..... bugger
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mike you saying that guy told me its had a engine rebuild 12mths ago but the engine is like new so sweet and 133000 on clock.and when i saw that pic my engine looks abit diffrent cos there is no sender fitted at the back of the engine could i drill and tap into the thermostate housing and fit one. i post the pic tomoz is there an engine identification i can look for just to see if it has been changed
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panic mechanic sorry i called you mike the messege is for you to see lol
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take a pic and then we can see for sure.
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can't remember if my 2.5 151 ci engine had it fitted elsewhere..... bugger
All 2.5 and 4.0 YJs have it in the same place. 97 onward XJ and TJ only have the unit on the stat housing and the gauge is driven by the engine management. The YJ temp sender is probably too long to go in the stat housing.
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interestingly just looked it up on the 151 in the chiltern manual...... its in the inlet manifold but then its only used that engine for 1 year only so its not always there.( think you are thinking about the 150ci mike)
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yes like i said i have one in the thermostate housing what someone has replaced and when i disconnected this connection it brought the engine management light on.
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are you close to brum?
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The 151cu in. is a GM motor, AMC dropped it when they introduced their own 150cu in. in 1984. it was never fitted to the YJ.
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yes like i said i have one in the thermostate housing what someone has replaced and when i disconnected this connection it brought the engine management light on.
It will do. It can't adjust the fuelling properly if it can't see the coolant temperature.
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hi im in sedgley dudley also i just remebered i phoned the dealers on saturday to order a sender for the temp gauge they took the chassie number and said £22.00 so i could ring them bk tomoz and ask them were it is because like you said if mine works off the engine management one in the stat houseing then its been renewed.
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hi mike yes your right about it not adjusting the fueling properly if disconnected.because it ran irrattic when disconnected.also ive noticed that when its warm it has to turn over abit before it will fire up then when it starts you can smell fuel like its over fueling.any ideas on that guys
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hi im in sedgley dudley also i just remebered i phoned the dealers on saturday to order a sender for the temp gauge they took the chassie number and said £22.00 so i could ring them bk tomoz and ask them were it is because like you said if mine works off the engine management one in the stat houseing then its been renewed.
No, the thing is, the temperature gauge on a '93 YJ always works from an independant sender at the rear of the engine. If you have a later engine fitted without this, the gauge will not work. Also, don't be tempted to connect it to the front sensor, best case it just won't work, worst ways it'll fry the engine ECU. If you do have a later engine fitted, the best thing to do is try to fit the correct sender somwhere, Perhaps try the stat housing, but I don't think there's room. Perhaps something like a metal T piece fabricated to fit in the top hose. Have a good look for a stray wire at the back of the engine where the sender should be. If you ground it the gauge should go up.
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mike i tell yah wot i did spot when looking for it looking at the engine from the front the inlet mahifold on the right there was a blck sensor fitted in there with a 2 pin conector on it and i did wonder if that could be it but i dont know if water passes through the inlet somewere
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There is an air temp sensor in the inlet manifold...........(https://birtydastards.com/frm/proxy.php?request=http%3A%2F%2Fz.about.com%2Fd%2Fautorepair%2F1%2F0%2FK%2FG%2F42264882.gif&hash=d2fca10c5d5afe030c41300aec8dbbb81988b580)
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yes mike thats it yeah air sensor never mind i cant even find a hanging wire.
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This is where you should look...... (https://birtydastards.com/frm/proxy.php?request=http%3A%2F%2Fimage.jpmagazine.com%2Ff%2F9311819%2Bw750%2Bst0%2F154_0608_06_z%2B1989_jeep_wrangler_xj%2Bcoolant_temperature_sensor.jpg&hash=5f6fb4505d1dc30cf6af6d29a23d30eed656bc24)
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The 151cu in. is a GM motor, AMC dropped it when they introduced their own 150cu in. in 1984. it was never fitted to the YJ.
sorry mike, I was geting abit mixed up with the 2.5 cj I had, the engine I should have said is the 150 ci tbi'd unit that has the sensor mounted in the inlet manifold.
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I am only by J4 of the M5 and bubba is even closer to you as he is in black heath
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i will have a look i did see that bolt yesterday when i was looking the one what holds the rocker down .i let you know if i find it thanx
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HI MIKE GOOD NEWS I LOOKEDWERE YOU TOLD ME TO ON THAT 2 DIAGRAM AND THERE IT WAS ON THE RIGHT HAND SIDE BY THE INLET MANIFOLD REASON I COULD NOT SEE IT WAS THE TOP HALF HAS BEEN SNAPPED OFF AND I FOUND THE CONNECTOR HANGING DOWN. THANKS VERY MUCH FOR YOU HELP AND EVEYONE ELSE TOO
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