4g64

[Redneckmoparman]

so i finally fixed my exhaust leak of what i though was one broken stud on cyl 1 was actually 2 i took off the mani cause i couldnt get the O2 sensor out to see if the exhaust was plugged so i just pulled the mani pulled the broken studs removed the O2 sensor so i can deal with that easier in the future and put it back on still doesnt run hit the books to figure it out maybe the main relay so i test it and works perfect so yet again im stuck i have no idea besides maybe the ecu is garbage so does anybody have a 2.4 ecu that is known good they could send me? preferrably a cali ecu so i dont have any issues or any ideas you guys have?

[noahwins]

I wonder if there's a design flaw in those engines, I had the same problem with a broken stud on #1.

[royster]

anybody have ideas?

After you left the chat box a couple of us strongly thought it was the coolant temperature sensor (not for the temp gauge).

Mine hated cold weather starts, and while I've admitted to having added stupidly thick oil, it didn't like cold starts before that. Now that I have the engine stripped down, I'm replacing all those bitchy little sensors as I put it back together.

Having spent a week replacing sensors on my '95 Sable, I learned a lot about the complexity all those sensors cause. It had been my hope that the D-50 was simpler...and in many ways, it is...but apparently we're not getting away from sensor problems entirely. It'd be just our frikkin' luck that a $2 sensor would baffle us to the point of giving up.

If I knew NOW what I didn't know then, about the Sable's sensors, and that many of them could have simply just been cleaned (rather than replaced) I'd be a couple hundred bucks richer...maybe.

That having been said: it's worth a try to replace the coolant temperature sensor, if you haven't already. It's right up there in the thermostat: mine's two-pronged (the gauge sending unit is single-prong).

If nothing else, RNMM, you certainly have my full sympathy.

[Redneckmoparman]

Already replaced that and after more testing my injectors are not firing looking at the distributor at this point before i condemn the ecu but i cant figure out how to test it and the fsm doesnt give a testing procedure

[Redneckmoparman]

If i cant fix it before i join the navy then its getting the 360 or a chrysler 2.4

[Redneckmoparman]

well i got a new crank sensor for in the dist and still no injectors on start or crank so the ecu i am condemning and need a new one if i can find a cheap used one for around $50 any more than that and its sitting until i gets swapped so what are your opinions? im either doing a chrysler 2.4 or a 360v8 either way this is going to become more dodge than mitsu just cant commit to either one i know i can get a wrangler 2.4 which will have the same intake that wraps over the top of the drivers side to an intake at the stock location and i can put an srt bottom end inside and run a decent turbo and still get good mpg and same power as the v8 or just be badass and make a show truck with a v8 so if i could start a poll i would but i cant find an option for one on here so what do you guys think? and no i cant be talked into keeping the sirius motor it is coming out sooner or later and will be up for sale including the trans and exhaust

[Redneckmoparman]

i like the idea of this because i could make it appear factory and it would be more driveable and i could still use it as my daily driver with the right gearing

[Redneckmoparman]

can you see where the problem is?

[Redneckmoparman]

its this

so the truck has had a slight overheating problem where it will go most of the way on the gauge when the truck first warms up but once it hits im guessing 230ish the tstat opens or something finally flows and it goes to the middle of the gauge and never moves again and when starting the coolant system will pressureize so i figured what the hell it leaks oil has the coolant issues so ill just rip the damn thing apart gaskets are cheap enough



and since i have all of this going on ill take the front end apart and replace the destroyed core support once i get the a/c system emptied and try to get this truck back to 100%

[Redneckmoparman]

pictures of the ecu as requested from the shout box


the backside of the board

the damaged area the 4 solder points the screwdriver is pointing at are the same on each side

[Redneckmoparman]

better pic of the damage

[Redneckmoparman]

So as of right now once i get the truck back together i think ill keep the stock motor for now and get this to run it with http://www.diyautotune.com/catalog/d...kit-p-390.html which could be a good option for those of you wanting to do a turbo setup or a 4g63turbo it would plug in and you would only have to do some harness modifications for it and have a more reliable and useable setup than swapping to an eclipse harness and ecu

[royster]

You are one determined sleauth, RNMM! And to find that circuitboard problem took some not-giving-up.

How cool, the way you used an egg carton for the valve assembly!

Since we have the same trucks, your posts really help me in many ways...including what to watch for and what to do to fix it. Thanks, though sorry you had to go to so much agony.

[Redneckmoparman]

I use egg crates for all my disassembly you can keep them seperate that way like i have a 18egg carton with all engine bolts one with body stuff and so on keeps things organized to make reassembly a lot easier now im gonna go yank out the ac then core support then engine and trans and just go through everything while im here gaskets and oil are cheap and my labor is free so ill go have some fun!

[Redneckmoparman]

no more pics yet but the trans engine driveshaft is all out of the truck awaiting either a refresh and install or a new heart havent decided yet but ive got a start on removing the core support so i can get the new one put on and at least try and make the truck look good lol what a major PITA it is to drill out all the spot welds though but it will be done soon and then go sit under cover so i can take care of other projects

[royster]

Yeah, these trucks get great mileage but they sure eat up your time!

[lush90]

Are you going to clean up and rebuild the ECU yourself? There was a good tutorial on this on the net and you look like you have the skill and patience to do it. The capacitors that leak and should be replaced are pretty inexpensive from what I have been told.

[Redneckmoparman]

Idk i might its worth it i suppose but other pices might be fried so who knows might just get megasquirt so i can log view data and tune it to my liking

[royster]

I saw in chat where you discovered two cracks in your head. Sorry to hear that. What's the latest on JJ?

[Redneckmoparman]

Well now it is going to sit and im gonna get my coupe running and ill come back to this someday prolly build the suspension and then move onto the drivetrain and decide what im gonna do but for now it will be sitting for quite a while sad to say

[royster]

Miracles happen. You never know what tomorrow will bring. You just might find one for sale dirt cheap near you.

[Redneckmoparman]

im thinking a DOHC swap with a custom exhaust megasquirt and ITBs its always good to have some diversity or maybe just keep the SOHC i dunno but a head will be needed at some point to get this underway i might sell a car to fund it i dunno i cant keep to one idea lol i wish i had like 5 of these little pickups so i could just go nuts on each one making different builds lol

[royster]

Megasquirt!?

In chat with MLS, he says the cracks in heads can be welded, but that "they don't hold". You might check around and see what's possible. Just getting the truck back on the road will allow you time to decide. Meanwhile, you'd be driving JJ. He'll take you on the journey you need to go.

[Redneckmoparman]

yeah ive got a really good head repair shop that i might give a try but to fix it properly ill have to do new valve seats which will drive up the price cause i dont do anything halfassed if i dont need to and i want this truck to be 100% so it will not be quick but i think im gonna keep the 8v and see what i can get out of it

[Redneckmoparman]

Well here is where it is sitting until i decide the fate of either a turbo or getting the black coupe in the middle running or getting JJ running idk yet what i want to do

and this is 4 out of 6 of my vehicles pictured here with my 1973 Dodge D200 Club Cab with 360V8 727tf 2wd that my grandpa(moms dad) bought new and the frame in the back and the cab on the very left of the picture for my 1978 W150 Dodge Power Wagon that is a 360 727 and full time 4x4 that i will restore someday and the JJ the 1990 Ram 50 Sport that you all know that was my other grandpas(dads dad) and then my 1999 Dodge Neon Sport Coupe but not pictured is my 1988 W250 Power Ram and 2001 Plymouth Neon which sooner or later ill post up about those in other vehicles but this is the old carport where the mobile home used to be that is now my vehicle storage!