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This is an '05 Aviator. Today my ABS started kicking in under low brake force on dry pavement. It was pretty violent and erratic. Made it difficult to stop. Did it about 3 times and then stopped. My first thought is a bad wheel speed sensor. This might correlate with another issue I have...

I suspected my cc and rings were really carboned up. So I removed the plugs and sprayed in some Amsoil Power Foam and let it soak overnight. I sucked out some really nasty muddy junk from them. I was really surprised how bad it was. Seems to be running way better now, but not perfect. Anyone...

Bought a new compression tester today and tested my 4.6L Aviator. Pulled all the plugs out and had the wife crank the engine. I tested cylinders 1-4 and all maxed out between 160-170psi. That is good compression, but what I'm concerned about is the amount of time it took. I thought it would take...

I'm cleaning out my garage. I've got all 4 rotors from a 2000 Mounty that are in very good shape. I've also got the 5 shocks I pulled off that were actually still in very usable condition. (Actually better than the Monroes I replaced them with). If you are in Colorado Springs area and want them...

I'm not a big believer in "snake oils" but sometimes they have a place. I've heard that Seafoam can potentially free up stuck piston rings. I think my Aviator might be a candidate for this. Has fairly low compression, 130psi Intake manifold was horribly gummed up. It was like molasses, not...

I got my rough idle drivability issues about 99% fixed. But still had an occasional rough idle. What I've determined is that it is only happening at 900-1000 RPM. Condition doesn't matter. In P, N, driving, cold, hot, etc. Happens when idling steady at 1000rpm. It happens when revving up past...

Can't believe it. The battery is about 18 months old and had it tested 2 months ago and it was 700CCA. This morning it was dead. Tested at Advance auto and they said it was only 30CCA. I tried charging it but it wouldn't take a charge at all. Thirty minutes and still dead and the charger wasn't...

So this is a bit of a mystery. Today I pulled the radio unit from my Aviator. In the process I noticed that some linkage on the heater system is broken. It's near the top and behind the radio. When I push the various buttons I can see the vacuum diaphragm moving in and out. The strange thing is...

Looks like maybe I have a vacuum leak that only occurs when engine RPM's drop down or shortly after vehicle stops. This is based on scan data. I disconnected the IAC plug and found that my actual RPM is often higher than desired RPM. (Actual 700-750 desired 624). This would indicate a vacuum...

Okay, I've got my Aviator running pretty good but still getting an intermittent rough idle. And I've noticed that the RPMS's still seem high at times. Especially when revving the engine they seem to take much too long to come down. I noticed that I have to brake more than I should down hill...

I just wanted to share my experience in correcting a rough idle issue because it was particularly frustrating and I got quite an education in the process. Lots of information here. If you have the same problem I had, hopefully there will be something useful to you. This is on an '05 Aviator with...

I'm about 99% sure my problem is the lower intake manifold gaskets. I suspected I had a leak so I replaced with Felpro. Seemed like it helped my rough idle but started getting worse again. I later realized that the intake was leaking again. So I pulled the intake and sealed it off with the same...

This is an Aviator, but I imagine it's the same system as an Explorer. I often can't get the shift lever out of park. Normally you should hear and feel a solenoid engage in the shift lever when you depress the brake lever. Mine often doesn't work and I have to shake the shift lever to get it to...

This seems simple, but just want to ask about it. I realized that my engine RPM is slow to come down to a normal idle speed. If it's in P or N and I rev it up to 2500, it stays there a couple seconds and comes down slowly, and in steps. Even in normal driving if I come to a stop it will step...

I've got this rough idle about 90% fixed, but still not perfect. What I've done: Ignition: Stock plugs, verified good spark. Cleaned and tested fuel injectors Cleaned throttle body Cleaned intake manifolds New intake gaskets New EGR New IAC New upstream O2 sensors Cleaned and...

Still chasing down rough idle issues... I connected my scanner to the Aviator. Sprayed carb cleaner on the EGR valve and got the short term fuel trim to drop almost 10%. Seems like a leak. Note, this does not have any audible change to the engine because the computer does such a good job of...

Got my nitrile glove a little too close to an open manifold port and it sucked in about half a digit of my nitrile glove with the engine running. I'm kinda thinking this is no big deal. Probably just got melted and spit out the tail pipe in the form of some toxic gas.

Seems like this keeps getting worse. I've got a rough and hunting idle. I've checked everything: Plugs Coils Spark Vacuum leak O2 Sensors Cleaned throttle body Cleaned intake. Upper and lower. New OEM IAC PCV system is functioning correctly So today I connected to Scan XL. With...

I've suspected I had a vacuum leak, but couldn't find it. I first tried using carb cleaner, but no luck. Then I tried using propane, and nothing. So I decided to test my test. I injected propane directly into a vacuum line, and literally could not hear any change in the engine at all. I had to...

Here is a photo of my Aviator intake. Not sure if this would make it run rough or not, but I removed it and am getting it cleaned up. More of an issue I think is that maybe there is something wrong with the PCV system or something else that caused the end runners to get so dirty. Anyone have any...

Thought I would share my mistake so other hacks like myself can learn. Trying to check the spark quality on my 4.6L Aviator. I used a regular spark plug and observed the spark. It was orange, not white or blue. I started chasing down potential electrical issues. Then I got online and read...

When I say rough, I don't mean terrible. Once it's good and warmed up it idles pretty smooth at 600RPM. Seems to hunt once in a while. Cold idle is a little rough. Sometimes when accelerating from a stop it has a very slight stumble/miss until it gets over 1500rpm. I think the average motorist...

This is a weird one. My engine has always idled a little rough. But after I reinstalled the tranny it got noticeably worse. I cleaned the MAF sensor and IAC and it made the low idle nice and smooth, but high idle is still rough. Possibly an O2 sensor was damaged removing the exhaust, but I would...

I rebuilt my "rebuilt" transmission this week. Took about 30 hours, but well worth it. I installed a Transgo shift kit at the advice of a local tranny shop. Seems like it shifts harder than stock. Not pounding hard, but noticeable. Is that normal? I assume it is, but just want to verify with...

Got the tranny out of my Aviator. That's 10 hours of my life that are gone! Symptoms it had: Noisy torque converter, converter not locking up code, leaking fluid. I verified that the rebuilder did indeed rebuild it. It has new bronze servo bore sleeves, so I will assume he replaced the rest of...