Engine rattle/ping/knock accelerating or driving uphill...
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Senior User
Joined: Jul 2017
Posts: 278
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From: Penticton, BC, Canada
Engine rattle/ping/knock accelerating or driving uphill...
I had an issue with my 1999 F-150 Lariat (5.4L, auto). When I was towing my bass boat or even without the boat if I was driving through the mountains, my engine would rattle/ping/knock like crazy.
I did a search on the forums here, and found a post about cleaning the MAF (Mass Air Flow) sensor. I asked the lead technician here at work about cleaning it, and he pointed out that it was almost 19 years old with 351,000kms on it.
I replaced it with MAF 0040 (Hitachi OEM) it even had the Ford part # on it. It fixed the problem.
Not only that, the engine had more pep when accelerating while driving in general.
It is available on Amazon in case anyone else is having similar issues.
***I should have mentioned, no engine light ever came on. I assume the MAF was not working, but was not technically out-of-spec enough to trigger a code. But, if it is constantly reading that the air is passing as if at idle, due to being dirty or defective, even when driving at-speed, it would run too lean (not enough fuel to match the air).***
I did a search on the forums here, and found a post about cleaning the MAF (Mass Air Flow) sensor. I asked the lead technician here at work about cleaning it, and he pointed out that it was almost 19 years old with 351,000kms on it.
I replaced it with MAF 0040 (Hitachi OEM) it even had the Ford part # on it. It fixed the problem.
Not only that, the engine had more pep when accelerating while driving in general.
It is available on Amazon in case anyone else is having similar issues.
***I should have mentioned, no engine light ever came on. I assume the MAF was not working, but was not technically out-of-spec enough to trigger a code. But, if it is constantly reading that the air is passing as if at idle, due to being dirty or defective, even when driving at-speed, it would run too lean (not enough fuel to match the air).***
Elder User
Joined: Sep 2008
Posts: 657
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From: Helena, MT
I have been fighting ping for a while now. tryed everything under the sun. I saw this and looked up the cost of a new maf sensor. 40 bucks online. I went for it. and it worked. best 40 dollars I ever spent.
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Senior User
Joined: Jul 2017
Posts: 278
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From: Penticton, BC, Canada
Another thing that helps is an injector cleaning that also cleans the valves. It made a HUGE difference.
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Senior User
Joined: Jul 2017
Posts: 278
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From: Penticton, BC, Canada
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Senior User
Joined: Jul 2017
Posts: 278
Likes: 1
From: Penticton, BC, Canada
I was working on my bass boat yesterday, and figured I would try that reset in the video. I had done resets in the past, but had no idea I was maybe doing it wrong (ie - not just turning the key to on for 10 seconds before starting, driving it hard afterwards, not driving it until the transmission was fully warm, etc).
Worked great! Thanks again to the member who originally posted it.
Worked great! Thanks again to the member who originally posted it.
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Tuned
Joined: Jan 2012
Posts: 260
Likes: 7
From: Bumpass Va
curious
Hey guys,
I too was getting massive ping on my 98' 4.2v6 4x4, thought it was due to dad's prev driving and using the cheapest gas he could find always!
Really noticed it on hard accel's, like getting on the hiway on ramps, there is a short ramp where I live and you have to floor it or prepare to brake hard.
I've heard using Oil bath air filters like the K&N's cause oil to get on the MAF sensors something about putting oil droplets in the air stream, then that sticks to the sensor, causing them to trap more dirt, thus over time causing the ping.
This truck had a K&N filter in it since about 2001, dad never noticed the problem. When I got the truck at about 27k, I ran tank after tank of either seafoam or Marvel Mystery oil in the gas, it helped over time but I finally cleaned the sensor and went back to a paper filter and it seems to have cleared up the pings. Now it's got about 43k on it, when I stomp it to get on the hiway, it sounds like it should.
Just thought I'd share.
T
I too was getting massive ping on my 98' 4.2v6 4x4, thought it was due to dad's prev driving and using the cheapest gas he could find always!
Really noticed it on hard accel's, like getting on the hiway on ramps, there is a short ramp where I live and you have to floor it or prepare to brake hard.
I've heard using Oil bath air filters like the K&N's cause oil to get on the MAF sensors something about putting oil droplets in the air stream, then that sticks to the sensor, causing them to trap more dirt, thus over time causing the ping.
This truck had a K&N filter in it since about 2001, dad never noticed the problem. When I got the truck at about 27k, I ran tank after tank of either seafoam or Marvel Mystery oil in the gas, it helped over time but I finally cleaned the sensor and went back to a paper filter and it seems to have cleared up the pings. Now it's got about 43k on it, when I stomp it to get on the hiway, it sounds like it should.
Just thought I'd share.
T
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Galizien
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Dec 29, 2006 09:37 AM