I got a message to post so I will run this past you guys.
I recently picked up a 95 GT convertible for my wife. It has 96,000 mi and a full tank of 89. It has a 65mm BBK throttle body & off road h pipe.
I have been working the bugs out of it and decided to figure out
Why she says he 2004 Mercury Monterey mini van has mor power off the line( and it does).
I checked the MAF(clean), tightened the loose distributor cap adapter and TPS.
Replaced the plugs ( motorcraft platnum) cap and rotor. I checked the timing and
Found it @ 2deg ATC to 0deg, I figured someone set the timing with the spout plug in so I set it to 12deg BTC. It was pinging so bad I could barely accelerate. I went back to 10BTC now it pings under high rpm load-wimpy top end. I put it on the snap on machine and my timing showed is 22+/- which is normal. There are no codes but it still doesn't have any imprssive acceleration. The only odd thing noted was the mass air sensor did not hit 4.5 volts at wide open . I'm thinking to drop the timing back down to 0 in 4deg incriments and drive it after each adjustment. But why was the timing there and when it was it chirped the 1-2 shift !
Let me know what you think.
Steve
I got a message to post so I will run this past you guys.
I recently picked up a 95 GT convertible for my wife. It has 96,000 mi and a full tank of 89. It has a 65mm BBK throttle body & off road h pipe.
I have been working the bugs out of it and decided to figure out
Why she says he 2004 Mercury Monterey mini van has mor power off the line( and it does).
I checked the MAF(clean), tightened the loose distributor cap adapter and TPS.
Replaced the plugs ( motorcraft platnum) cap and rotor. I checked the timing and
Found it @ 2deg ATC to 0deg, I figured someone set the timing with the spout plug in so I set it to 12deg BTC. It was pinging so bad I could barely accelerate. I went back to 10BTC now it pings under high rpm load-wimpy top end. I put it on the snap on machine and my timing showed is 22+/- which is normal. There are no codes but it still doesn't have any imprssive acceleration. The only odd thing noted was the mass air sensor did not hit 4.5 volts at wide open . I'm thinking to drop the timing back down to 0 in 4deg incriments and drive it after each adjustment. But why was the timing there and when it was it chirped the 1-2 shift !
Let me know what you think.
Steve
maybe some changed the timing chain and didnt replace it properly?
I would confirm that the balancer hasn't spun. They don't usually last to 96K miles. If it has spun any timing reading are useless. Look for any signs of rubber coming from between the hub and outer ring, noise and/or a wobble.
I would confirm that the balancer hasn't spun. They don't usually last to 96K miles. If it has spun any timing reading are useless. Look for any signs of rubber coming from between the hub and outer ring, noise and/or a wobble.
+1
this is the first place to start looking
__________________
94 gt aode baumannator,pi stallion 3000 stall,transgo,mega bite jrs,3.90 gears,31 spine moser axles,comp exteme,1.7 roller rockers,190 pump,mac cold air,ford 1 5/8 unequals, off road h,flowmaster 2 chamber with stainless tails,msd box,PIH(a9p computer ajustable fan controler),q1a k-member,kenny brown frame ties,driveshaft loop,air pump eliminator kit,bbk 70mm tb,pro-m bullit meter,24#injecters,ported heads&intake,and all the little bolt ons.
I think the snap on machine confirms the balancer isn't broken because the light and the machine show the same. I hope to get on it tomorrow to confirm the wires aren't crossed.
It also shows no sign of motor work done i.e. chain and gears.
My 95 GTS has for the longest time, pinged or valve clattered under heavy acceleration. The only thing that helps is high octane fuel. It seems as if some others on this board has that problem too.
I've been fighting this exact problem ever since I bought my '95 'vert almost 5 years ago with only 36,000 miles. Here's a list of things I have done, and everything has helped a little, but nothing has been 100% yet.
Retard timing, set mine something around 4* BTDC
Cooler heat range plugs. Autolite 24's(Did wires, cap and rotor at same time)
Premium fuel
KB fuel regulator (didn't seem to help, just wanted to make sure it was right on the money, and installed a guage on the rail at the same time.)
K&N airfilter (Again, feel good measure)
Now, the biggest decrease in spark knock I got was when I installed a set of Power Pulleys just looking for HP. I think the less drag on the engine was a big help.
I often wonder if the fuel injectors are partially clogged on some cylinders causing them to run lean and the remaining cylinders are running richer on that bank due to O2 readings, and that one cylinder is where the pinging is coming from.
I just replaced my O2 sensors last week since I'm about to roll 100,000 miles on the clock. Noticed some improved acelleration and smoother running, but no reduction in spark knock. To make matters even worse, I just bought another '95 'vert for my son to drive and it spark knocks just as bad, if not worse! We did the SeaFoam treatment on that one, no difference.
94-95s are known to have issues with pinging. I've heard that it can be fixed by cleaning/changing parts and I've also heard that its in the crappy ford tune. I had a 94 GT that would ping no matter what I did. I figured it had too much carbon build up since it only had 50k miles. It was bone stock.
Now I have a 95 GT that does the same thing. The only difference is it has 70k miles. However, running 93 octane fixed its pinging problem.
I've just come to the conclusion that its in the tune. Just because so many different people have tried changing and cleaning everything and it still exists. Some get lucky, like me, and can just run higher octane and its fixed.
As soon as I get my H/C/I I'm getting a tune so hopefully I won't have any problems anymore with 87 octane. Oh, and as far as the performance goes, these cars are just horribly slow. My 95 GT ran a 15.9.
94-95s are known to have issues with pinging. I've heard that it can be fixed by cleaning/changing parts and I've also heard that its in the crappy ford tune. I had a 94 GT that would ping no matter what I did. I figured it had too much carbon build up since it only had 50k miles. It was bone stock.
Now I have a 95 GT that does the same thing. The only difference is it has 70k miles. However, running 93 octane fixed its pinging problem.
I've just come to the conclusion that its in the tune. Just because so many different people have tried changing and cleaning everything and it still exists. Some get lucky, like me, and can just run higher octane and its fixed.
As soon as I get my H/C/I I'm getting a tune so hopefully I won't have any problems anymore with 87 octane. Oh, and as far as the performance goes, these cars are just horribly slow. My 95 GT ran a 15.9.
I don't buy that crappy tune bit. Mine originally ran without pinging with 14* advanced timing on 87 octane fuel. The trick is to know what specifically to look for as a probable cause and work through the list. Some solutions are obvious others not.
1995 Mustang GT ping and poor performance 
