sidepipe87 Posted January 18, 2014 Share Posted January 18, 2014 Empty Post Link to comment Share on other sites More sharing options...
TheDirtyJeep401 Posted January 19, 2014 Share Posted January 19, 2014 :thumbsup:Like the truck. They usually always start out rough, but its not called a project for no reason. The 2.5 might grow on you, it did with me, but for some reason it seems like mine has more power than others. (Might just be me) either way, have fun with it! Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted January 19, 2014 Share Posted January 19, 2014 First off, welcome to ComancheClub!! The PO did some ghetto riggin' underneath that hood. I see the newer style aluminum valve cover has been fitted, but the CCV on the front-driverside of the VC has been left disconnected. The heater hose that is supposed to run to the intake manifold is not there and what the hell is up with that multi-junctioned upper radiator hose? lol. Also, I see more butt-connectors on the main harness than I'd like to count and some sort of gauge on the back of the throttle body (I assume to monitor fuel pressure). Perhaps the fuel pressure gauge is an indication that the fuel pump was giving them trouble. May explain why it was/is hard to get up and maintain 50+ MPH. Also, your manual transmission is not made by Renault. It's an AX-4 and depending on what kind of abuse it has seen, may be on it's way out if it gave you trouble on the ride home. But, aside from all that, it seems to be a pretty straight truck and it should be quite a project for you. Looking forward to seeing what all you do with it. Link to comment Share on other sites More sharing options...
sidepipe87 Posted January 19, 2014 Author Share Posted January 19, 2014 Thanks for the good input! Any idea why it might be stalling out when coming to a stop if I don't give it gas quick enough? The kid said its the aftermarket o2 sensor someone put in there but I don't know that I'm convinced. A friend of mine said the speedometer sensor could be bad... Any thoughts on this? I'm aware of a VSS but not a speedometer sensor. Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted January 19, 2014 Share Posted January 19, 2014 There is no VSS or speedometer sensor on an '86. It uses a cable. Aftermarket O2 sensor shouldn't cause that either, at least I don't see how. At what RPMs does it idle? The IAC could be malfunctioning. What's the fuel pressure (assuming that little gauge is in fact a pressure gauge)? It should be seeing 14-15 psi. Also, I'm not 100% on this, but that missing hose that runs to the intake manifold is important I believe. I have been told that the engine temp sensor (not the one for the temp gauge) is located in the intake manifold. The computer needs to see what the temperature is so it gets out of "closed loop" mode. In other words, the computer optimizes fuel and air ration once the engine is warmed up, but if it doesn't know when the engine is warmed up, it never optimizes. I hope that makes sense. I don't think just one thing is causing all of your issues. I think it's several things that need addressing. There's a good FSM floating around here that cover all the Renix year Jeeps. Thanks for the good input! Any idea why it might be stalling out when coming to a stop if I don't give it gas quick enough? The kid said its the aftermarket o2 sensor someone put in there but I don't know that I'm convinced. A friend of mine said the speedometer sensor could be bad... Any thoughts on this? I'm aware of a VSS but not a speedometer sensor. Link to comment Share on other sites More sharing options...
Comanchepur Posted January 19, 2014 Share Posted January 19, 2014 :wall: All projects are difficult to start but mencioned that travel to your home is a adventure for mechanical and weather conditions. With all mechanical problems the truck make a trip, it is a proved truck. Do not worry it's a long project planning from bumper to bumper project and do not forget check all cables because I saw in the photos to prevent short circuit when it is running again. When you finish have a nice truck with favorites selected features and a great truck. :chillin: . :MJ 2: . :popcorn: :popcorn: Link to comment Share on other sites More sharing options...
sidepipe87 Posted January 19, 2014 Author Share Posted January 19, 2014 Onlyinajeep - thanks for the info about the '86, and I tend to agree with all your other suspicions because I feel the same way about it... I'll have to get back to you about your questions though as I haven't touched it since I brought it home and how it's sitting with snow and ice all over it. Comanchepur - I agree it has a lot of potential I just get aggravated at all the issues simultaneously. The worst part of any "new" car for me is undoing all the prvious owners neglect. I'm very meticulous when it comes to my cars so I don't like them being neglected and needing maintenance. Link to comment Share on other sites More sharing options...
sidepipe87 Posted February 3, 2014 Author Share Posted February 3, 2014 Empty Post Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted February 3, 2014 Share Posted February 3, 2014 The connector you have pictured below goes to a sensor on the high pressure line for the power steering. It's purpose is to manipulate the IAC to up the idle RPM's to aid with steering. Before I did my 4.0L conversion, I had this same plug and it too was just dangling there, not connected like it ought to have been. That's not a biggie though. You have quite a few other issues that take priority. Also, I have the emissions vacuum canister off of my '86. If you'd like to get the truck back up to factory specs, I would be willing to sell it to you for a reasonable price. Looks like this below: Link to comment Share on other sites More sharing options...
sidepipe87 Posted February 3, 2014 Author Share Posted February 3, 2014 I'd appreciate that. Shoot me a PM with what you'd like for it, does it have the bracket to attach it to the firewall? Did you do away with it because it's a different vac setup for the HO motor? Being that I'm new to this platform I have no idea what can safely be undone, but from all I've read Renix and vacuum nightmare go hand in hand so I don't really want to add to the problem. Any idea about the seemingly missing vacuum ports that are depicted near where the missing EGR setup goes? Also, after getting my hands dirty with this thing I reread your original post and everything you said was spot on. Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted February 3, 2014 Share Posted February 3, 2014 I took it out because it's different than the 4.0 canister. My 4.0 and associated electronics are still Renix (came from a '90 XJ). I don't know about the missing vacuum ports as I'm not near as familiar with the 2.5's but the EGR stuff does appear to have been removed by the PO. Your best bet is to pick up a Haynes or Chilton manual. They're pretty sufficient in aiding with repairs. But I'll shoot you a PM shortly for that vac canister. Let me just make sure I can find it before I try to sell it haha. Link to comment Share on other sites More sharing options...
sidepipe87 Posted February 4, 2014 Author Share Posted February 4, 2014 Sounds good, thanks! I'd love to buy a factory service manual but I found a few different manuals when searching and wanted to make sure it was the correct book before I bought it. Link to comment Share on other sites More sharing options...
sidepipe87 Posted February 9, 2014 Author Share Posted February 9, 2014 Well I got the vacuum canister from onlyinajeep yesterday but didn't get a chance to get it all hooked up yet. In fact I'm not even sure where exactly it mounts yet. I did however realize the 2 vac lines near the EGR I couldn't find are nipples on the plastic air cleaner at the TB. Last night I pulled the truck in the garage and began ripping the old rusted out exhaust off to replace with the new parts I got from Rock Auto. I ended up not needing the exhaust donut (2.5 doesn't use it), 4 bolt flange seal at the cat (new cat came with one) and 1 of the 2 pipe clamps (cat came with one of those too), so I could've potentially saved about $20 on parts. I got the exhaust all fitted last night but didn't clamp it all up because I needed to go buy 2 new rubber hangers since mine were shot at the muffler hangers. Here's the old stuff I ripped off I took note of the red springs on the front of the truck... I saw Rock Auto sells Rancho springs which are red, maybe that's what these are? Also, I picked up 5 16" TJ Moabs with MTR tires yesterday for $900 from a local guy... I also realized the heater never blows out of anywhere other than the defroster. Presumably because of a vacuum leak. Well it turns out there is no round vacuum expansion chamber behind the grille on the passenger side where I believe there should be one. I'd guess maybe this is why. The aftermarket o2 on the truck is not a direct replacement piece, but rather they cut one wire off the connector and wired it into the only wire on the o2 sensor... I'll be soldering that wire back on the connector and putting a stock o2 sensor back on the truck. Once I get some of this stuff cleaned up hopefully it will run better. I have yet to start it up after fixing the exhaust so I'm anxious to see how it sounds. Link to comment Share on other sites More sharing options...
A23dranger Posted February 9, 2014 Share Posted February 9, 2014 Looking good Ryan. Going to have to get one soon and stop lerking lol Link to comment Share on other sites More sharing options...
sidepipe87 Posted February 12, 2014 Author Share Posted February 12, 2014 Looking good Ryan. Going to have to get one soon and stop lerking lol haha welcome aboard my good neon buddy Ryan Well I have a few questions I'm hoping I can get some clarification on. First off, I got the charcoal canister from onlyinajeep but cannot for the life of me figure out where it is supposed to mount in my 2.5s engine bay?? I can't find a picture anywhere of a 2.5 engine bay with a charcoal canister. The vac diagram shows it on the passenger side somewhere but there's no logical place the bracket mounts up. Any help on this? The next thing is the heat only works through the defrosters. I looked under the whole front end and finally found the vacuum ball behind the front bumper... But when I pull it out (bracket was broken off) it looks like this... Not too surprising that my heat controls don't work. I need to find a new 2.5 or compatible vacuum ball/reservoir/tank whatever you call it Also, the previous owner had tossed this in the bed of the truck... some sort of filter, but what is it? I've looked up that number on it but it comes back with nothing And finally a picture of the truck outside with the new wheels. My pride and joy had to sit out overnight and get all covered in snow then got stuck on the ice in the back yard... :shake: I also discovered the aftermarket o2 sensor only has one wire and was spliced in... as in they cut one of the wires from what I assume to be the oem o2 connector and wired it up and that's it... I assume this might play into it running $#!&ty. I plan to rewire the connector and install a direct fit o2 sensor. Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted February 12, 2014 Share Posted February 12, 2014 Also, the previous owner had tossed this in the bed of the truck... some sort of filter, but what is it? I've looked up that number on it but it comes back with nothing That thing is an oil blow-by filter for the CCV system used on the 2.5's. Goes on top of the valve cover in the rear of it, on the plastic valve cover. Since yours was swapped for a later model aluminum one, you have to get a little creative to hook it up (assuming you want to). Photo credit: 87Warrior This is how I hooked it up and the brass fitting up front: And as for the charcoal canister that I sold you, it mounts like this (look directly under the heater hoses): And another picture (it mounts to the passenger side frame rail, lower left corner of the photo below): Link to comment Share on other sites More sharing options...
sidepipe87 Posted February 12, 2014 Author Share Posted February 12, 2014 Awesome! Thanks for the good info on both. I figured the filter was something for the pcv/ccv setup but wasn't too sure. I'm have to get a new one and get it hooked up. Also, i went ahead and ordered the proper style o2 sensor for the truck last night. Rock Auto had them on closeout so i got it at a discount. Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted February 12, 2014 Share Posted February 12, 2014 I love RockAuto... I just hate how each item is charged shipping, even if each item is coming from the same warehouse... Messed up since they're all stuffed into one box. Link to comment Share on other sites More sharing options...
tmaxx411 Posted February 12, 2014 Share Posted February 12, 2014 you also need to hook up the coolant passage in the intake manifold. there are engine sensors in the manifold for coolant temperature in my 2.5. it could explain why it ran like crap before Link to comment Share on other sites More sharing options...
sidepipe87 Posted February 12, 2014 Author Share Posted February 12, 2014 you also need to hook up the coolant passage in the intake manifold. there are engine sensors in the manifold for coolant temperature in my 2.5. it could explain why it ran like crap before Huh, interesting. My coolant temp and oil pressure gauges don't work and someone wired up aftermarket ones. I'm curious if this is related to the coolant lines being disconnected. I was under the impression there was another sensor somewhere else specifically for the coolant temp gauge though. I was hesitant to hook it back up because people said once it's disconnected there's a decent chance the manifold will crack and coolant will then get into the inner intake I love RockAuto... I just hate how each item is charged shipping, even if each item is coming from the same warehouse... Messed up since they're all stuffed into one box. Oh yeah, I agree totally. I have at least 2 of every different Rock Auto magnet out there I think haha. It is stupid how they charge shipping for each item when they're stocked at the same warehouse. Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted February 13, 2014 Share Posted February 13, 2014 It's just a gimmick to make it seem like their prices are cheaper... I was looking to buy an oil filler cap and the part was ~$3.00. Shipping was ~$4.00. I bet the thing didn't even weigh more than 3-4 oz. AutoZone has the same cap for $7.00. Link to comment Share on other sites More sharing options...
sidepipe87 Posted February 13, 2014 Author Share Posted February 13, 2014 Yeah, definitely gimmicky for sure. However from the probably hundreds of times i have ordered from them generally it does end up being a bit cheaper, plus i always use a 5% discount code. If you look at my exhaust post above I believe I saved something like $39 even after shipping buying from RA versus buying locally... They don't seem to mark up their prices as badly as some of the big chain auto parts stores do. Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted February 13, 2014 Share Posted February 13, 2014 I agree. 95% of the time, I'll shop RockAuto, but there are a few things that cost more after shipping than just buying it locally. Overall, I really like RockAuto. Link to comment Share on other sites More sharing options...
tmaxx411 Posted February 13, 2014 Share Posted February 13, 2014 you also need to hook up the coolant passage in the intake manifold. there are engine sensors in the manifold for coolant temperature in my 2.5. it could explain why it ran like crap before Huh, interesting. My coolant temp and oil pressure gauges don't work and someone wired up aftermarket ones. I'm curious if this is related to the coolant lines being disconnected. I was under the impression there was another sensor somewhere else specifically for the coolant temp gauge though. I was hesitant to hook it back up because people said once it's disconnected there's a decent chance the manifold will crack and coolant will then get into the inner intake I love RockAuto... I just hate how each item is charged shipping, even if each item is coming from the same warehouse... Messed up since they're all stuffed into one box. Oh yeah, I agree totally. I have at least 2 of every different Rock Auto magnet out there I think haha. It is stupid how they charge shipping for each item when they're stocked at the same warehouse. i have never heard that about an intake. i would hook it up and see if anything bad happens. the gauge is a smaller 1 wire sensor on the drivers side back of the head. the gauge on the intake manifold should be to tell the computer what temperature the coolant is Link to comment Share on other sites More sharing options...
onlyinajeep726 Posted February 13, 2014 Share Posted February 13, 2014 i have never heard that about an intake. i would hook it up and see if anything bad happens. the gauge is a smaller 1 wire sensor on the drivers side back of the head. the gauge on the intake manifold should be to tell the computer what temperature the coolant is This. Link to comment Share on other sites More sharing options...
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