It would appear as though my steering leak on my 1991 Aerostar is coming from the seal, where the steering shaft enters the steering box. I'm trying the Lucas treatment but it doesn't appear to be working. Can this seal be replaced WITHOUT replacing the entire steering box?
View 6 RepliesI developed a freeze plug leak while driving into town in my 1991 Aerostar with the 3.0 liter engine. Got to Schuck's (my destination) and bought some antifreeze, noted where the leak was and filled up the coolant system.
Drove a few miles to the mechanic's house. Coolant blowing out everywhere, obviously boiling off. Let it cool down while going over an estimate for repair. Topped it off one more time and went home. Have not moved it since.
There is sludge, almost like thick foam, that I suspect is what's left of coolant that has had the water mostly removed. It is the same color as the coolant - bright orange-ish green. Will a few flushes with fresh water clear this out of the system?
My engine stalls when cold or warm, when put in gear or idling in gear at a stop. If I left foot break and give a little gas I can usually keep it going. I ran 2 bottles of fuel injector cleaner through, but no dice. Could the fuel filter need to be replaced? If so, where is it located? 1991 Aerostar 3.0 Auto RWD
View 14 RepliesWhere/how to check the ATF in the transfer case? I found the lower drain bolt,but I don't see anything up higher that looks like a fill hole.
'91 Aerostar 4.0L AWD
1991 aerostar 4.0 ... My van was running well til last week.it allegedly has 77000 miles on it. It started running really rough within a 50 mile period. I've quit driving it til I am sure. I am not harming it. I put a vacuum gauge on it. It wildly fluctuates between 3 and 7 pounds at idle. I've tried plugging the four vacuum lines one at a time to eliminate the accessories as the problem.the check engine light is off and my scan tool shows no codes.i unhooked the exhaust at the manifolds to make sure the cats aren't clogged.it doesn't have egr. There's no water in the oil or bubbles in the radiator.i have a compression tester but id like to avoid trying to get to the plugs unless necessary.
View 5 RepliesHave a 91 Aerostar that won't start. Has fuel pressure, pulse to fuel injectors, strong spark, strong compression, etc.
Thinking that the spark may be coming at the wrong time I tried a spare ignition module that I keep. No luck. Since my distributor had a lifetime warranty I got another one, again, thinking spark was coming at wrong time. Nothing. Engine won't even pop.
I am going to drop the front pipe in the unlikely even that the new converter is plugged or, somewhat more likely, the muffler, but I am leaning toward a computer at this point.. Still don't understand since it is getting spark and gas why engine won't even pop.
How to remove roof rack on 91 Aerostar? Google and search box here yielded no result so a new thread is likely in order. I have leaky roof. Not windows.
View 8 RepliesWill interior door panels from a '91 Aerostar fit a '96? No power windows or locks. The panels in our '96 are busted and I found a good set in the salvage yard in a '91. Lady at salvage yard says they're different, but I'm not so sure. Also, will the windshields swap?
View 3 RepliesI have a 1991 Aerostar 2wd 3.0. I recently had freeze plugs replaced and the mechanic had to drop the tranny to get to some. Now the shift cable has come off the gear selector lever. I have googled everywhere and can't locate the procedure for reattaching it. My mechanic was doing the work on the side and charged me only labor for his assistant. He is at work right now..
View 5 RepliesWell I've got an nice steady leak coming from the front of the pan.... running aft of course (downhill, windflow). She's down right now for an AC overhaul and new PS pump/hoses, but I'm inspecting to see what is next to get this stinking oil leakage stopped.
Front HB removal and seal of course, done in situ (in position). But if it is actually the oil pan/seal, can that be done there also? Front of the pan looks tight to the crossmember, and how the internals look (tray baffles, pump pickup) I've no clue if it will come off. Once she is back up and running I'll ascertain where this leak originates.
Interweb searches show the 90-94 4.0L engine is notorious for pan gasket leaks. None of the writeups I've found thus far determine if that pan can be pulled where she sits.
I have been having to add 1-2 quarts of oil every 2-3 days. I have noticed the back of the engine wet, but have seen no visible leaks unless the engine runs then it drips. Does it sound like a valve cover gasket problem or a rear main seal?
View 5 RepliesI have a 1990 Aerostar that has leaked gas 3 or 4 times. I am not sure where it is coming from exactly but it seems to be towards the back of the engine, kind of near the torque converter. This leak happened 2 days ago when i was warming the van up and it was cool outside. The time before that, it was after driving for a while. The day before yesterday I drove it probably 50 miles with no problems and it was about 85-90 degrees outside. I drove it today and there was no leak and today is a cooler day.
View 14 Replies1989 3.0 shorty - 135K on her - and at 21 years old, the original radiator finally failed with a hair line crack, and so I bought a plastic on, from on of the part stores, put it in, and now it takes on like a gallon a month of antifreeze.
BUT I see no leak at all... the engine runs fine, and not head gasket or crack head (been there done that with the explorer I have). I don't smell it either really -heater core is dry... as is floor underneath. Need replacing the Radiator?
Oil leak started suddenly - losing large amounts - dripping off front differential. Very hard to determine source. Ahead of Sensor Assembly. Drivers side.
Leak is very bad. Quart drains out in 10 minutes - solid stream.
Could it be the timing cover gasket ? Or is that too far back.
Tempted to use bars...
89 3.0L - I seem to loose a little bit of coolant every time I drive maybe like 1/2 a pint?
I checked every connection - engine running, and even waited to make sure the t-stat was opening, and closed, etc (maybe it was the top hose, nope)
I did replace the radiator a couple of years ago, and had the problem ever since I did that, but at the same time, I also replaced the T-Stat with a 165 degree, since she was starting to run a bit on the hot side, even with the new water pump and radiator I did... on a cool day, it would run at the middle of the gauge with a 190 degree... and with AC on, hills and 95 degree days, it would be pushing upwards of 3/4 of the way on the gauge...
Could the 165 degree therm stat be somehow causing a 13 lb cap to not function properly? I replaced the original with a Stant... but Im thinking I should get a new Motorcraft OEM cap, since the other one lasted 20 years!
I kept the old radiator - love it - "wow real brass/copper in there!" it was still fine when I pulled it, but had a hairline crack right below the top hose area...
Anyways, pressure tests revel nothing, I see no bubbles or anything with the engine idling, cap off
1994 - 3.0 .... Back behind the water pump there is a stream of coolant what could that be. Water pump has been replaced earlier last year I thought that fixed it,there has always been a mystery leak..
View 6 RepliesI have an 88 EB, and every time I fill up the gas tank and park on my driveway (slight incline) gas leaks from the top of the tank. 3 different mechanics have checked it out completely and say there it nothing wrong - including the dealer that totally topped off the tank. Does this sound like a fill line to the tank? It only leaks until the gas gauge goes down a notch....
View 14 RepliesMy van is leaking oil from where the oil filter extension bolts to the block. Is it an o-ring or a gasket that needs to be replaced? Any unexpexted upsets that I should expect when fixing this?
View 13 RepliesSearched several times over the winter. Finally tore each hose out one at a time and went carefully over it before returning or replacing.
Turned out to be the long formed semi flexible vac. hose that runs from the gas fumes purge tank control valve group to the throttle body across the top of the engine. Ripped it out, on one of the bends was a small crack all the way thru, apparently would open up wide when stressed and cause problems. Mainly on hill pulls or hard acceleration but not every time. NO hair left after this one.
Replaced, deleted the codes. Runs like a top.
Still amazed at how much power these 4.0L V6 OHV Fords have from low speed on an uphill on ramp drag race.
stirs the old hot rodder blood.
I replaced the water pump on my 3.0 and now, 9 months later, there is a coolant leak from the front engine cover (timing chain cover). The leak has probably been there two months or so, but it was so small initially, it was difficult to locate. A google search seems to indicate that a leak from the timing cover is somewhat common on the 3.0.
When I was doing the job, I noticed that some of the water pump bolts also hold the front cover in place, which seems like a bad design because removing those bolts takes some of the compression off of the timing cover gasket. Now that I have this leak, I'm wondering if changing the water pump is related to the leak. And, yes, I did use thread sealant on the bolts as recommended in the genuine Ford shop manual.
So now, I'm curious. Noticed a leak from the timing cover relatively soon after replacing the water pump on 3.0?
Front diff does not leak but seems to get alot of oil coming out vent hose. enough to make a mess and require more top offs.
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