Hello I have an Aerostar 3.0 -89. with 410000 Kilometres on the speedo.!......think thats pretty good, or?

Have some problem with it...
It has some rough idle, and I think the consumption of gas is a bit high, but still nothing shows on the emmision tester.
Even think that performance has lacked a bit!.

Please give some hint...
The oxygen sensor was replaced 5 months ago..

What can it be?

 

246,000mi--thats a bit of traveling. Suggest you do a search in the Aerostar section for the following terms: Throttle position sensor (TPS), mass air flow sensor (MAF), air charge temperature sensor (ACT), and plug wires. Any one of these could be contributing to the symptoms described. Other contributors have considerable expertise with the 3.0 engine and will hopefully chime in as well. Good luck!

 

> . . . mass air flow sensor (MAF)

No MAF on the '89, only MAP.

Regards,
Al S.

 

Thanks for the answers...

Have another question..
Read in this list that it was posible to get error codes from the check-engine lamp....`?

Someone who knows how to do?

//// Deeman!

 

[updated:LAST EDITED ON 05-Feb-02 AT 01:59 AM (EST)]>Read in this list that it was posible to get error codes
>from the check-engine lamp....`?

Not as far as I know . . . I've got an '89 3.0l also, and I've had to do the diagnostic connector jumper trick, with a very small lamp or voltmeter on another terminal, and read the sweeps. It's not real easy, I'll grant you. I'm tempted to buy a scan tool -- I know it's just a digital counter, but it might still be worth it!

You will want to begin collecting documentation, if you wish to service your own vehicle. I have four sources:

* Ford Service Manual for 1989 Ranger/Bronco II/Aerostar (two manual set covering Engine and Chassis, but NOT Emission diagnostics nor electrical wiring diagrams!) (purchased used via eBay for about $60, but sometimes available new from Helm, Inc. at their website:

[a href= "http://www.helminc.com/helm/Search2Result_full.asp?Style=&Mfg=FMC&Make=FCT&Cat egory=3&mscsid=V6CFJ86HBVH88GBBJNN91W1NH0JRCHCB"]http://www.helminc.com/helm/Search2Result_full.asp?Style=&Mfg=FMC&Make=FCT&Cat egory=3&mscsid=V6CFJ86HBVH88GBBJNN91W1NH0JRCHCB[/a]
or
[a href="http://www.helminc.com"]http://www.helminc.com[/a] and drill down.)

* AllData CD + TSB bulletins option (available at many auto parts stores, $20 + $20)

* Haynes (ditto, about $13)

* Chiltons (ditto, about $15)

Beware the Chiltons, because it does not tell you how to read the control system codes from the ECU, nor does it provide a chart of the codes/descriptions. The other three sources do.

Regards,
Al S.

 

Ok..
Think I´ll begin with buying the Haynes book and then check what might be wrong....

Thanks

////// Deeman!

 

One thing that is a negative about the Haynes manual (for us folks in the US) is that it seems to contain many references to non-US-specification Aerostars. This might be a positive for you!

The Haynes I have is part No. "36004 (1476) (US)"

I was wrong when I included the Ford factory manuals in the list of manuals that have the ECU diagnostic codes: mine don't, and it refers me to get the "Engine/Emissions Diagnosis Manaul (Volume H)" to service the emissions system.

Helm lists my two-manual set for $92 (FPS-12199-89-1 and -2), but does not have a listing for this "Volume H" manual, and neither does eBay. Sigh.

The Wiring book, however, is only $27 at Helm, and I may buy it next month. The AllData CD has a whole bunch of wiring diagram fragments, and that's what I've been using. It's pretty good, especially if you're handy with scissors and tape, so you can print out these five-page diagrams and splice them together

Regards,
Al S.