i have a 04 mustang making a tapping sound i replace lifters but sound still present wat could it be


Asked by Jul 17, 2013 at 09:54 AM about the 2004 Ford Mustang

Question type: Maintenance & Repair

i replaced the lifters but sound didnt go away sound like lifters but like i said just replaced them

12 Answers


its a 3.8 L use the 5-20 valvoline oil

What kind of oil do you use, synthetic or petroleum, and what viscosity? 5/30, or what? And which engine?

1 out of 1 people think this is helpful.

regular oil i guess its petroleum 5w20 and the engine size its a 3.8 v6

That oil is good, so it's not too thick is why I asked, Now, did you put in hydraulic tappets (lifters)..I don't recall offhand what that engine uses. Synthetic oil is my personal preference, but that is all it is, personal preference it is not what is causing the sound. I'm full of questions, I know...but is it a little tick or more like a knock? Mileage? I don't even know if it's an OHC or has pushrods. A bent pushrod will do that.

1 out of 1 people think this is helpful.

its more like a knock it sound like it could be the lifters but its not cus i just replaced em it has 115 miles on it and its push rods

You may have to open her up again and roll the pushrods on a flat surface. No warping. But before you tear her apart maybe re torque the rocker arms rail nuts, If I remember they are on studs with a nut, as opposed to a bolt securing the rocker rail and do a compression test, Does it smoke out tailpipe?


no it dose not smoke also on idle the noise goes and comes and when accelerating and decelaration noise comes back

Next suggestion is EGR from that description. Take a look at all vacuum hoses, everywhere. Let me look at some stuff..will be back

1 out of 1 people think this is helpful.

ok tanks

1 out of 1 people think this is helpful.

Symptoms of failed EGR: Pinging and Knocking Pinging and knocking commonly result from increased engine temperatures. These increased temperatures cause pinging and knocking by creating a condition where the fuel and air mixture within a cylinder ignites prematurely. If an EGR valve is opening improperly, it can increase engine temperatures, causing the pre-ignition of the combustion process before the proper timing, resulting in engine knock. Best wishes.hope I was even a little helpful

2 out of 2 people think this is helpful.

wow dude, you rule! I'd have never gone there~EGR which opens up to reduce combustion temp not engaging...strange world we live in~!

2 out of 2 people think this is helpful.

ya gotta 'goose back'....hand out with the smileys, if you are going to get any "smileys" back....goose~

Your Answer

Add photo

Related Questions


Looking for a Used Mustang in your area?

CarGurus has 41,404 nationwide Mustang listings starting at $900.


Search Ford Mustang Questions

Ford Mustang Experts

#1 Tom Demyan
Tom Demyan
Reputation 3,770
#2 FordNut
Reputation 1,220
#3 carGrrl
Reputation 890
View All

Related Models For Sale

Used Chevrolet Corvette"
427 Great Deals out of 20,261 listings starting at $3,688
Used Ford Mustang SVT Cobra"
7 Great Deals out of 318 listings starting at $5,999
Used Ford F-150"
3,161 Great Deals out of 216,438 listings starting at $1,000
Used BMW 3 Series"
1,624 Great Deals out of 39,575 listings starting at $888
Used Jeep Wrangler"
432 Great Deals out of 16,278 listings starting at $3,600
Used Chevrolet Silverado 1500"
2,427 Great Deals out of 143,996 listings starting at $1,995
Used Nissan 350Z"
111 Great Deals out of 1,562 listings starting at $2,895
Used Honda Accord"
1,267 Great Deals out of 77,937 listings starting at $1,395
Used Chrysler 300"
564 Great Deals out of 21,106 listings starting at $1,490

Used Cars For Sale

2017 Ford Mustang For Sale
12,168 listings starting at $21,495
2016 Ford Mustang For Sale
56 Great Deals out of 7,741 listings starting at $17,899
2015 Ford Mustang For Sale
180 Great Deals out of 4,204 listings starting at $16,195
2014 Ford Mustang For Sale
106 Great Deals out of 2,922 listings starting at $11,950
2013 Ford Mustang For Sale
42 Great Deals out of 1,435 listings starting at $9,999