Birty Dastards Jeep Club
Tech Forum => Workshop => Topic started by: 72 watch on January 12, 2011, 08:41:56 AM
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hi birtys me again brought a wrangler jeep 1993 2.5petrol. its had a engine rebuild and been serviced filters plugs ect. drove it back from sailsbury on half of tank and drove round a couple of days seemed ok on the fuel. put £20,00 in and done 30miles. just drank the fuel. this was driving at 1500 revs around town so was not heavey footed. ive taken a plug out and its a nice light brown colour. as i was thinking lamba sensor but not to sure if its that.. but the problem i have is when its hot the engine throws over abit b4 it will start and when it does start its just like its flood as the smell of petrol is strong, soon clears it self when fires up. only thing i did check is that the tyres had about 24psi in and when i checked the net they should have 34psi. so ive only just corrected that but cant see that making abig diffrence. any suggestions plz
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Although now £20 only buys a shade over 3 gallon its still bad,my 6.6 litre averaged more than that.Bubbas the man for the older Jeeps,im sure he will be along later with some wisdom
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first off make sure you record ya mileage and fuel best is to fill er up and do a hundred miles then you will have a much better idea
but please note the 2.5 is not really any more economic than the 4.0 and as we all know tatting about is a killer to mpg whilst it sounds i bit steep check first before you start spending cash
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i think there is only about 2mpg difference officially wasn't it? altho slightly more on a run (@6mpg more)
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no idea what the stats were but out in the real world there wernt a lot in it
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1993 Jeep Wrongler 2.5 City 16mpg Hwy 19mpg Combined 17mpg
1993 Jeep Wrongler 4.0 City 15mpg Hwy 18mpg Combined 16mpg
(US Gallons)
Pretty close - why bother with the 2.5, given that it has more issues than the 4.0.
Anyway, 16mpg US is 19mpg Imperial for city driving, and twice what the OP is getting.
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to be honest i dont mind 16mpg but 8/10 mpg a killer. especially at the rate fuel is. i have posted something else on diesel conversions for thease under mods. in what diesel engine will best fit with very little modifications. any suggestions anybodie.thanx for all your replys
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none easy
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what wheels are you running?
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good point panic is it still standard ???
how old is the engine rebuild could it still be a bit tight and still running in ? also i wonder why it needed a rebuild a solid engine much like the 4.0 normaly
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Mike posted an issue seen on 2.5 petrol engines, but I can't remember what it is. Doesn't affect the
4.0.
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missing two cylinders
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missing two cylinders
dumbass...... its missing 4 :hysterical:
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hi im running 31.50/15 and the engine is origianal at 130000 miles . the motor no modifications never bin off rd. but when the engine is warm it dont start straight away it has to throw over a bit then when it fires up its just like its flooded as strong smell of petrol but soon clears.
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missing two cylinders
It is funny to see the fan cowling on a 2.5 Wrangler is nearly as big as the engine
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I would think it could be something along the line of either lambda sensor, or tps, or altho you said its been rebuilt what work was done with the injectors? could it be worth running some redex thru it to clean up the fuel system?
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Or maybe maf sensor?
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make sure you know sactly how thirsty first the 31s will drag it down a bit
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the yellow yj I had , was fitted with 31' at's and did a lot better than that.altho it was gutless and would run the opposite way from a hill, unless you were off roading and it went everywhere it could on the tyres it had.
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im not sure what work its had done. but yes i will try redx as i dont think the injectors have been changed. also whats the tps.
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Don't bother with that shit. Put 100ml of pure acetone in the tank and fill up. It really works.
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A bad upstream O2 sensor can cause excessive fuel use. So can bad or disconnected engine temp sensors which will fool the computer into thinking it's -40 degrees and massively enrich the fuel mix. I think a 93 has two temp sensors but not sure which would be used for fuelling calculations. A bad O2 sensor shouldn't cause issues till the sensor warms up as they are not used during initial warm up.
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Get rid and buy a 4.0. Happy days :003:
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thats a bit harsh but has merit
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to behonest i was going to buy a 4.0l but this came up and to be truthful its so quick and it rips up hills like stink.it really is quick it surprised me how it dont hang ar.ound.
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is it chipped ?
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im not sure . but it certainly dont hang around
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ok its sounds likes its either been regeared, or maybe you a drivinf rund in 4 low or smoking something as 2.5's don't normally go anywhere at any pace other than sluggish
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ha now im defo not driving in low im driving in 2wd. and it is not sluggish when we meet :wave-fingersmiely: up at next pub meet i can show you.its propper throaty
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:017: please dont take this wrong but 4 poppers are not normally that lively so its either had its somthing done to it or your range rover is pathetic on power :017:
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photo of the engine would be nice
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photo of the engine would be nice
To make sure it actually has one??
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im not comparing it to the rangy and my rangy has loads of torq as ive had the turbo modifyed bigger to put more air in the cylinders and had to fit a dump valve . it wont live with my rangy but i was talking on the basis of the comment of sluggishness and it is not sluggish.i dont dought you for one minute that they are sluggish as i stated i know nothining about wranglers so i dont know how they should perform. but you talk landys and rangerovers there is not much i dont know. and as for my rangy its like shit off a shovel and pull a house down. lol :drool:
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careful she dont blow with that turbo many years ago i found with that engine that when you think to yourself ....hell dun err go....it blows soon after
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when the next pub meeting on near to my way westmids i will come in it your more than welcome to try it for yourself.as for it having something done to it i dont know as i dont know the history on it. the engine is the same one as i was sent on here when trying to locate the temp sensor
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first sat in feb in blake down you can always pop to mine if ya want i am in the west mids by j2 of the m5
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yes your right i have heard of few guys having there engine go tits up. i fitted a good qaulity dump valve because what ive heard some have fitted cheapo ones and they pack up dont release the pressure build up and bends the conrods
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bubba send me yer address throgh private mess im only in sedgley so i could pop round saturday are you the chap in blackheath m8
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who is the chap in blackheath
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blackheath is sorta outer london & kent border
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you dipstick
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:hysterical: thats twice tonight already
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no some one on here when replying bk to me said the best person to talk to is? as he in blackheath 2mins from junction 5 oldbury junction ?"""
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2 mins from junction 2 /m5 oldbury
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sounds like me then
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it is, and it was panic
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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yo lot avin me at it ur sods lol
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No Bubba does hang out there....
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I'm lost!
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I'm lost!
Buy a map? :017: :hysterical: