Engine knocking

Tiny
TIMHAAK
  • MEMBER
  • FORD THUNDERBIRD
Hello, I own a 1993 ford thunderbird 5.0 V8 LX, just recently ive been hearing a subtle knocking noise. This only occurs after driving for a while, I drive to school everyday for 8 miles and it dosent start till the last 2 or 3. The noise only occurs during normal acceleration after I have driven for about 5 or 6 miles. Can you advise me as to what may be wrong>(yesterday I checked it out and I was low on coolant so I refilled that but today the sound persisted.)? The spark plugs are new, it has a new transmission(september 2007) it has 80,000 miles. Any help would be much appreciated
Wednesday, November 21st, 2007 AT 9:31 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
When the last time you change oil/filter? If the knocking is coming from inside the engine better stop driving it and check the oil pressure.
Was this
answer
helpful?
Yes
No
Sunday, November 25th, 2007 AT 5:08 AM
Tiny
TLAWFORD1
  • MEMBER
  • 1 POST
I think we are having similar problems. Here is where I am so far with my knocking problem. When ambient air temp gets above 70F, and engine has come up to operating temp, if you either try to go 70 or kick down into passing gear at any speed above 40, it makes a knocking sound, MIL code 0174 bank2 too lean. (Which I would expect from misfiring letting too much unburned O2 go out exhaust = 0174) It is totally dependant on ambient air temp. Below 50F wont do it and gets 19MPG, at 80F does it badly and gets 11MPG. Makes me suspect that ambient temp under hood (not block temp) is affecting some component. Current suspect is the transistor unit sending 12 volt pulses to ign coil, called EDIS-8 or sometimes ICM ignition control module? I have replaced all O2 sensores, plugs, ign wires, fuel injectors, fuel filter and air filter = no change. QUESTION: Where is the EDIS-8 (Electronic Distributorless Ignition System) control module located?
Was this
answer
helpful?
Yes
No
Monday, April 28th, 2008 AT 2:23 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
It has an ICM instead of the EDIS located at item no.27 see below


https://www.2carpros.com/forum/automotive_pictures/12900_icm_1.jpg

Was this
answer
helpful?
Yes
No
+2
Monday, April 28th, 2008 AT 2:53 PM

Please login or register to post a reply.

Related Engine Knock Content

Engine Knock - Ping
GUIDE
Engine Knock - Ping
An au­to­mo­tive en­gine knock, and en­gine "ping" are two dif­fer­ent things so it can be a bit con­fus­ing, here is an ex­pla­na­tion to help avoid con­fu­sion when read­ing ...
VIEW MORE