Constant Pinging
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Constant Pinging
I have a 93 Aerostar 3L, that has pinging at low rpm, when the rpm increases the pinging just becomes very constant. The engine is very loud, possibly due to exhaust leak, but i doubt it...
Any ideas what this is?
I seafoamed the car, and cleaned the maf. I thought the plugs would be bad, but if that was the case seafoaming the engine, which would clean the plugs would possibly help, which it didn't.
Thanks guys.
PS. how many horsepowers do the 3L and the 4L engines have?
Any ideas what this is?
I seafoamed the car, and cleaned the maf. I thought the plugs would be bad, but if that was the case seafoaming the engine, which would clean the plugs would possibly help, which it didn't.
Thanks guys.
PS. how many horsepowers do the 3L and the 4L engines have?
Postmaster
Joined: Sep 2003
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From: Southern California
Vacuum modulator on the transmission is leaking, allowing transmission fluid to be sucked into the engine. Very common on the 3.0L. Pull the vacuum line at the modulator (passenger side of the transmission, near the exhaust) and check for transmission fluid in the line.
Post Fiend
Joined: Apr 2005
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From: Washington state
the 3L is about 130 hp and loves high rpm, the 4L is about 145 hp and is a torque monster even at low rpm. both run very quiet with complete original exhaust system.
if you have the 3L with distributor, check the adjustable base timing, search Aero forum for instructions or info is in Chilton's
you may have a failing or moved crank or cam sensor which is affecting timing.
does the noise/pinging? increase on uphill pulls or hard acceleration?
all else fails, use water injection into the vaccum system to clean carbon, search FTE forum for technique, works well.
exhaust leak is easy to localize with section of garden hose as listening device
if you have the 3L with distributor, check the adjustable base timing, search Aero forum for instructions or info is in Chilton's
you may have a failing or moved crank or cam sensor which is affecting timing.
does the noise/pinging? increase on uphill pulls or hard acceleration?
all else fails, use water injection into the vaccum system to clean carbon, search FTE forum for technique, works well.
exhaust leak is easy to localize with section of garden hose as listening device
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Postmaster
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From: Southern California
Hi 964wdr:
I don't think the '93 3.0L has any crank or cam sensor.
Ray:
What's the mileage on the van? I think 964wdr is right. You either have lots of carbon build-up, or your timing may be advanced too much, or your octane is too low.
I don't think the '93 3.0L has any crank or cam sensor.
Ray:
What's the mileage on the van? I think 964wdr is right. You either have lots of carbon build-up, or your timing may be advanced too much, or your octane is too low.
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Both the HP specs above are wrong. The 3.0 is 145 hp, and the 4.0 is 160 hp, and yes, it is a torque monster. If you are dynotesting to the above specs, then something is very wrong with your engine.
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I'm getting about 23mpg in highway and 15-17mpg in city for the car (which is slightly worse than my crown vic that has 4.6L V8). I did carbon clean all the throttle body today. Is there an octane pin on these cars? I would like to pull it out to see if the pinging would go away. Also how easy is it to replace the Crankshaft positioning sensor on these cars? Is it as much pain as the other fords?
Postmaster
Joined: Sep 2003
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From: Southern California
The mileage you're getting is really good already. I don't think you can really improve on it. On the '93 3.0L, there are no octane pin, no crankshaft sensor, no camshaft sensor, no knock sensor, none of the fancy stuff that were put in in '96, I believe.
Post Fiend
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From: Washington state
khanty,
relax, i used the adjective of "about", do you believe the manuf.'s "specs", you will find more than 15 hp diff between 2 engines off the assembly line after they are broke in. tell me, is is 144 hp or 146 hp? I know of no one that is going to waste money putting a 10 year old Ford pushrod V6 on a hp dynometer. these are not NASCAR engines.
your 3L '93 is a distributor old school engine with no crank or cam sensor, Ford did away with the distributor in 3L's in '96 and went totally electronic like the 4L.
the "octane pin" is called a "Spout connector" in Ford language, search the Aero forum for spout, will give you the whole procedure on setting the old style 3L with dist.
check the dist. shaft side and end play, can have drastic effects on engine performance.
does premium 91 or 93 octane reduce the "pinging"
thats' good mileage for the 3L, at the mid to top of the range for the forum.
relax, i used the adjective of "about", do you believe the manuf.'s "specs", you will find more than 15 hp diff between 2 engines off the assembly line after they are broke in. tell me, is is 144 hp or 146 hp? I know of no one that is going to waste money putting a 10 year old Ford pushrod V6 on a hp dynometer. these are not NASCAR engines.
your 3L '93 is a distributor old school engine with no crank or cam sensor, Ford did away with the distributor in 3L's in '96 and went totally electronic like the 4L.
the "octane pin" is called a "Spout connector" in Ford language, search the Aero forum for spout, will give you the whole procedure on setting the old style 3L with dist.
check the dist. shaft side and end play, can have drastic effects on engine performance.
does premium 91 or 93 octane reduce the "pinging"
thats' good mileage for the 3L, at the mid to top of the range for the forum.
Last edited by 96_4wdr; Oct 14, 2005 at 06:42 PM.
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No form of high octane gas has removed the pinging. So is there an octane pin in these cars or not?
I will check on the distributor very soon.
Also there is some sort of howling coming from the one of the things off the belt.. I haven't narrowed it down, but it's on the passanger side, and i think it could very well be the alternator.
Does anyone's alternator, or anything on that side make a noise like howling?
I will check on the distributor very soon.
Also there is some sort of howling coming from the one of the things off the belt.. I haven't narrowed it down, but it's on the passanger side, and i think it could very well be the alternator.
Does anyone's alternator, or anything on that side make a noise like howling?
Post Fiend
Joined: Apr 2005
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From: Washington state
bearings in alternator?
take a section of garden hose and use it as a pinpoint stethascope on the alternator, many times one can even tell if it is the front or rear bearing in alt. replace both of course if it is. other will go soon.
may be noisy worn brushes, slip rings also.
i've even used the hose or stethascope to listen to pushrods to find a bad hydralic lifter
take a section of garden hose and use it as a pinpoint stethascope on the alternator, many times one can even tell if it is the front or rear bearing in alt. replace both of course if it is. other will go soon.
may be noisy worn brushes, slip rings also.
i've even used the hose or stethascope to listen to pushrods to find a bad hydralic lifter
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I have a stethescope.. so i will use that instead....
I will take the belt off this weekened and take every pulley out, force out the bearing and relube it. Hopefully it will be quieter....
I hope.
I really would like this car to be quiet enough so i can have a convo with my wife in the car while driving, but i don't see that happening
I will take the belt off this weekened and take every pulley out, force out the bearing and relube it. Hopefully it will be quieter....
I hope.
I really would like this car to be quiet enough so i can have a convo with my wife in the car while driving, but i don't see that happening