ok, so my heater core blew a month or so ago and in the course of looping hoses to get around until i could replace it, i managed to blow all 4 of the small molded hoses... at $15 a piece i couldnt justify buying them when standard heater hose is $1 a foot and i needed less than 8 feet to run the hoses straight from the pump to the heater core... so thats what i did...
i removed the steel tubes and put a pipe plug where it threaded into the intake and put my temp sensor in the port where the water return line for the EGR spacer went into the block...i'm thinking this is where i messed up...
i went from getting 20+ mpg before all this to less than 10 after. it doesnt seem like my car is running rich, but i suppose it could be... is there not enough coolant flow to this area to get a good temp reading for the computer?
I say, get the molded hoses, replace the heater core,and have it running as it should before the dead of winter gets here. The whole process can be done in a couple of hours. It's not as bad as most people make it out to be. When you try to "rig" things to work, you often end up worse off than doing it right the first time. It'll cost a little, but it'll be done right and give years of good service. $80.00 or less (if you shop around) and it's all done. Just do it and get it over with.
Yep. That is your problem. The back ports on the intake do not get ANY flow. The rear ports do NOT cross over from bank to bank. Can you put the temp sensor where you put the pipe plug and put the pipe plug in the rear port?
I'm kinda surprised you didn't notice a difference in driveability.
I just had to get new hoses myself and had a very difficult time finding the proper hoses. Ended up ordering them from here http://www.latemodelrestoration.com/item/LRS-18472A-K/86-93-Mustang-50L-Heater-Hose-Kit.
Just order them for a mustang gt, or go to a junkyard if you are that hard up. You do not need molded hoses as a temp fix. I would have just looped them around in a circle instead of what you did. You may also want to check you MAP sensor vacuum line. If that is unplugged, you'll get bad gas mileage and have black sooty exhaust. It will also burn out your cats.
Put the threaded pipe back on, just get a length of 5/8" hose and just loop it in a circle and you will not need the molded hoses. The heater core can be done in about 3 hours if you do it right. Print off the pictures on coolcats to walk you through.
o everything is fixed and working except the temp sensor... i'm going to buy a pipe plug to plug the port the sensor is currently in and get an adaptor to go from 1/2 npt to 3/8 npt first thing in the morning.
i did the heater core in 45 minutes in the dark with a flashlight....not NEARLY as hard as people like to make it out to be.