Ford Aerostar :: 1990 - Intermittent CEL On - ECU Dead?
I have had an intermittent Check Engine Light for a couple of days --- the van started and ran fine, but the CEL would come on after about 15 minutes of driving. It would sometimes go off before I reached my destination, but it was always off the next time I started the van. No sweat.
I went to read the codes this afternoon and now have a problem. I put one end of a jumper wire into the Self Test Input (STI) and then accidentally let the other end of the wire touch the 12V connector of the starter relay (why is that thing unprotected anyway?). I saw a little arc so I know there was some current flowing.
After this, I connected the STI to SIG RTN for reading the Key On Engine Off codes and got no pulses at all. I rechecked the jumper wire but got the same result. I then removed the jumper and started the van --- it ran quite rough and would only stay running by giving it plenty of gas. The CEL was on the whole time. I did this a couple of times just to be sure.
I guess there's nothing more annoying than turning a little problem into a big one... crap.
I couldn't find an electrical circuit diagram showing the STI in my Haynes manual, so I'm not sure what is likely to have been damaged. I assume the engine control module (ECU) has been damaged, but that is just a guess.
Some specific questions:
- where is the ECU?
- Should I spring for a new one (depending on the ID number), or is one from a junk yard just as good?
Elantra MD (2010-15) :: Intermittent Beeping When Car Is Stopped
I have a 2016 Elantra Sport which I purchased in Sept. I have noticed an intermittent beeping (5-10 min. apart) when the car is stopped, not running, in my garage. Can't find anything in the manual about it. Is this a security warning, or what?
View 1 RepliesTouareg :: Annoying Occasional Intermittent Beeping
If you're in a snow storm and you begin to hear a very annoying occasional intermittent beeping, you probably have park assist and the snow is covering the sensors. Shut off the park assist (button with yellow "P" on dash) before it drives you......
View 24 RepliesPrius (2004-09) :: Turn Off Intermittent Beeping When Red Triangle Lights Up?
I have a 2007 Prius 5 with 205,000 miles. Just recently, while Im driving the Red Triangle blinks on intermittently along with an annoying beeping. I took to dealer and they diagnosed error code C1300 which indicated that I needed a new "Brake actuator assembly with skid control ECU". I declined price tag because they said it's nothing critical (despite that it sounds rather important), and car will run fine without replacing this part. However, they said "nothing we can do about the intermittent red triangle and beeping".
Is this true? It's a very annoying noise. I know that it is possible to turn off the reverse beeping. Isn't there a fuse associated with "beeping" that could simply be disconnected?
Ford Aerostar :: 1996 - Intermittent Strange Sound Coming From The Fuel Pump?
Having an intermittent strange sound coming from the fuel pump from its normal whine at start up to a gurgling sound almost like you are blowing back through the fuel line back into the tank. Going on a 300 mile trip, should I hold off?
Btw: it's a 1996 Aerostar 3.0L
Ford Aerostar :: Code P1100 - Mass Air Flow (MAF) Sensor Circuit Intermittent
So, I've got a new toy (FORscan ODBII software) and a new code that isn't turning on the CEL (yet) but also didn't show up in OBDWiz either.
P1100 - Mass Air Flow (MAF) Sensor Circuit Intermittent
I cleared it, drove a few miles, checked again and it's set again.
The little troubleshooting advise window in FORscan says to monitor the MAF voltage while wiggling the MAF harness and see if the voltage goes below 0.23v or above 4.60v. I was unable to manually make that occur, no matter how I tapped on the MAF or wiggled the wiring.
However, in oscilloscope mode, look at this (at idle):
It sure looks like it went below 0.23v here. I have no time tonight to do any research. This is a relatively new MAF (one week old, Delphi unit). I think I'll swap it out for one of my two old OEM MAFs sometime this week. But if any opinion about this, pipe up. I do damned little work with scanners these days, and the tech keeps changing.
Ford F-150 - 1997-2003 :: 2000 - Beeping Noise From Under The Dash?
I got a 2000 f-150. today I started getting a low beeping noise coming from under the dash. it will beep or sound a few times then stop, then start again. What warning this is for? and there is no check engine light either.
View 3 RepliesGolf/GTI VI :: 2010 - IPod Connector And Bass Reduction At Higher Volumes?
I've got a 2010 GTI with the stock stereo. When I am using my iPhone via my iPod dock, the sound quality is good until I turn the volume up a bit (loud, but not blasting). Often it's a song that's a little bassier (hence why I'm turning it up), and it seems like after a second or two I can hear the bass levels dropping, almost like it's tuning it down. It also seems like if I mute for a second or two, and then unmute, the bass is back for a few seconds before it ramps down again. The volume levels don't seem like they'd be damaging the speakers, but is this something that it's doing to protect the speakers? Or am I just losing it?
View 1 RepliesFord Aerostar :: 1997 4X4 Stopped Going Into OD
I have a 97 4x4 that just recently stopped shifting into OD. I also noticed that I can no longer switch OD on or off on the end of the gear selector. The litle LED light does not turn on or off. Where to start? Just took it on the freeway and the engine sounded like it was working a little harder than normal to be at speed. Confirmed through gas mileage.....
View 14 RepliesFord Aerostar :: 1997 AWD - Heating Up To L In Normal
1997 AWD 4.0L with 112k
Background : Last year van suddenly overheated (almost to red). Turned on front and rear heat full blast and drove home - about 5 miles. Tested thermostat in boiling water and found that it would not open.
Fix : Pressure-washed radiator fins. Flushed system with Prestone kit and cleaner. Replaced thermostat and temp sending sensors (gauge and ECU) with Autozone parts. Added 50/50 coolant and correct amount of Bar's leak. Temps returned to normal.
Problem : As outside temps warm, the van now consistently runs between "A" and "L" in "NORMAL" on the gauge. AC on/off makes no difference nor does sitting or highway speeds.
Initial Fix : Suspecting the non-OEM Autozone thermostat to be the cause, I replaced the thermostat with a 197 degree Motorcraft unit from the dealer. The van still runs at the same temp.
My Thoughts :
Fan Clutch - Unlikely. Resistance when turning by hand. No fluctuation between sitting and highway speeds implies airflow is adequate
Thermostat - Unlikely. New OEM unit.
Temp sending sensor for gauge - False high reading a possibility. May try to measure temp of radiator supply hose directly to see if it's accurate. May also try to measure sensor resistance to see if it's within specs.
Radiator - Likely? Older van, so scale may be causing blockage. Temps have increased with time. No fluctuation between sitting and highway speeds supports blockage. No issue when outside temps are colder also seem to support blockage theory.
Conclusion : Radiator is okay with winter temps, but reaches it's cooling capacity with summer temps.
Ford Aerostar :: 1997 - Location Of Differential Vent?
97 3.0 2WD, Where is the differential vent or does it even have one? I've got a rear axle seal leaking.
View 5 RepliesFord Aerostar :: 1997 - Cruise Control Is Not Working?
My 1997 Aerostar's cruise control is not working. Horn is functional however. I've checked fuses and they seem to be ok. What could my problem be?
View 10 RepliesFord Aerostar :: 1997 - Location Of Fuel Filter?
Where the fuel filter for a 1997 ford aerostar is located? I have been told it is under the driver side near the front tire. I cannot find it anywhere. Is it near the middle by the transmission? I would like to see a schematic also?
View 4 RepliesFord Aerostar :: 1997 - Check Engine Light On
78,000 miles on odometer. The van starts and runs great. Always has. No change in performance since check engine light went on. Took it to local parts store here in California. They used to run codes here but can't any longer for the usual reasons. I replaced the EGR valve because I knew it was due and disconnected the battery and started the van. Light was off. Drove it a few times and it came back on again. Still runs fine though. I heard the Aerostar may kick a code off simply because it's due for a plug change. I think the plugs are original so I'm going to replace them. Plug wires too.
View 14 RepliesFord Aerostar :: 1997 - Lot Of Cranking Required To Get Started
Lately my '97 Aerostar has required a lot of cranking to get started. Like...sometimes 15-20 seconds before it fires. If I get it started, drive somewhere, shut it down, and then a few minutes later try to start it, it starts right up.
-Interesting: I've discovered that I can start it if I crank it 15-20 seconds. But I can start it far quicker if I crank for about 5 seconds, stop, and then crank it again. Then it typically starts right up.
It has done this on rare occasion for the past few years, but lately it is becoming the Norm, so something is wrong.
Hmm. Leaking injector comes to mind, but the oil doesn't smell like gas.
What is the failure mode of the fuel pump, and do I really have to remove the drive shaft and drop the tank to change the fuel pump?
Ford Aerostar :: 1997 - Oil Pressure Fluctuate Rapidly Up And Down?
On my 1997 XLT 4.0 the Oil Pressure Gauge (yes, I know it is not a real pressure gauge) started fluctuating down and up rapidly. Revving the engine does not seem to affect it. Oddly, it does not do it for the first few seconds after startup, until the idle stabilizes and lowers.
I checked the connection on the wire to the sending sensor, it looks clean.
Main concern - is this just the sending unit failing, or is it the Oil Pump? Do I need a mechanic to test the actual oil pressure?
Ford Aerostar :: 1997 - Factory AC System Staying On Defrost
97 Aerostar 3.0. Factory A/C system staying on defrost. Going to check and replace as necessary all under hood vacuum lines as soon as it cools down. I can already see some cracks in the plastic lines.
But. Just in case, where is the actuator for the door that directs the air flow either to the dash vents or defroster vents etc? Is it the one I can see from under the hood or in some impossible location?
Ford Aerostar :: 1997 - Cruise Control Cable Broken
When I had my heads replaced, the mechanic informed me that my cruise control cable was broken. News to me. It worked fine before. He said he couldn't find a replacement. I went to my local Ford parts dept. and they told me it was a discontinued item.
So I went online and ordered one from Direct Ford Parts and it did not match. The part number was FMC-F49Z9A825JA. In the parts catalog it says it fits 92-97. Not even close. The one I have has a screw off top and the one sent has a bolt on housing.
1997 Ford Aerostar 4.0 ... I really need my cruise control ...
Ford Aerostar :: 1997 - Location Of Blower Fan Motor Relay?
I'm having some trouble with the front blower fan on my 97 Aerostar 3.0, it will only intermittently work, one time we had it running, lifted up the hood on the van, checked the connection to the motor, looked good, dropped the hood and the fan immediately started working again, I'm wonder if the relay might be starting to go bad, the fan in the back works, so I'm not sure. Where the relay is for the blower motor, or what might be wrong?
View 6 Replies