PLUGS
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From: MINNEAPOLIS, MN
PLUGS
Well my first plug change came up, ( about 2500 miearly butI wanted to get it taken care of before the winter. ) I went with Autolite Platinum, changed all eight, no issues. Since they were only $1.75 a pack of two I kept a set of Copper tipped as back up. Autolites were gapped straight out of the package, although I did verify anyway. I do like the coil on plugs on the 4.7 it is a lot easier to keep track of, just coil off, plug out, plug on, coil on, reconnect. I did have one issue that may just be a fluke but I wanted to get input anyway.
During installation I started engine and ran moderate rpms after each intallation, more of a personal thing, if they were not good plugs, I wanted to find out right away and isolate any problem plugs/cylinders ASAP. O.K I am getting off track but today during idle testing, I decided to run further up the RPM scale so I went to 4000-4500. Approx 4.2/4.3K RPM it sounded like it was choking and about to stall. I backed off the throttle, let it recover and tried it again just to make sure it wasnt me. Same thing. Once it came back to normal IDLE RPM it was normal, and no further issues. no vibrations, no associated MIL codes. After going out for the afternoon, and having a good stretch of interstate to puch it, I found a deserted area, stayed near a breakdown lane, kept cell phones handy, and punched it to approx 4500 RPM. speed picked up, and went to
4500 RPMbut only for a brief second, then Trans kicked for upshift and rpms dropped. Same result two more tries, no hesitation, no rough idle, no MIL indications, basically no issues. Think this is just a one time fluke or possibly a REV limiter to keep people from blowing engines in normal configuration, you know protecting mechanics from themselves?
Next step Pre winter brake pad/rotor inspection, trans filter/fluid change,and coolant flush/refill. Again trying to get all this stuff done before winter. Standby for further updates.
During installation I started engine and ran moderate rpms after each intallation, more of a personal thing, if they were not good plugs, I wanted to find out right away and isolate any problem plugs/cylinders ASAP. O.K I am getting off track but today during idle testing, I decided to run further up the RPM scale so I went to 4000-4500. Approx 4.2/4.3K RPM it sounded like it was choking and about to stall. I backed off the throttle, let it recover and tried it again just to make sure it wasnt me. Same thing. Once it came back to normal IDLE RPM it was normal, and no further issues. no vibrations, no associated MIL codes. After going out for the afternoon, and having a good stretch of interstate to puch it, I found a deserted area, stayed near a breakdown lane, kept cell phones handy, and punched it to approx 4500 RPM. speed picked up, and went to
4500 RPMbut only for a brief second, then Trans kicked for upshift and rpms dropped. Same result two more tries, no hesitation, no rough idle, no MIL indications, basically no issues. Think this is just a one time fluke or possibly a REV limiter to keep people from blowing engines in normal configuration, you know protecting mechanics from themselves?
Next step Pre winter brake pad/rotor inspection, trans filter/fluid change,and coolant flush/refill. Again trying to get all this stuff done before winter. Standby for further updates.
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Joined: Jul 2007
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RE: PLUGS
ORIGINAL: MAGIC84
Well my first plug change came up, ( about 2500 miearly butI wanted to get it taken care of before the winter. ) I went with Autolite Platinum, changed all eight, no issues. Since they were only $1.75 a pack of two I kept a set of Copper tipped as back up. Autolites were gapped straight out of the package, although I did verify anyway. I do like the coil on plugs on the 4.7 it is a lot easier to keep track of, just coil off, plug out, plug on, coil on, reconnect. I did have one issue that may just be a fluke but I wanted to get input anyway.
During installation I started engine and ran moderate rpms after each intallation, more of a personal thing, if they were not good plugs, I wanted to find out right away and isolate any problem plugs/cylinders ASAP. O.K I am getting off track but today during idle testing, I decided to run further up the RPM scale so I went to 4000-4500. Approx 4.2/4.3K RPM it sounded like it was choking and about to stall. I backed off the throttle, let it recover and tried it again just to make sure it wasnt me. Same thing. Once it came back to normal IDLE RPM it was normal, and no further issues. no vibrations, no associated MIL codes. After going out for the afternoon, and having a good stretch of interstate to puch it, I found a deserted area, stayed near a breakdown lane, kept cell phones handy, and punched it to approx 4500 RPM. speed picked up, and went to
4500 RPMbut only for a brief second, then Trans kicked for upshift and rpms dropped. Same result two more tries, no hesitation, no rough idle, no MIL indications, basically no issues. Think this is just a one time fluke or possibly a REV limiter to keep people from blowing engines in normal configuration, you know protecting mechanics from themselves?
Next step Pre winter brake pad/rotor inspection, trans filter/fluid change,and coolant flush/refill. Again trying to get all this stuff done before winter. Standby for further updates.
Well my first plug change came up, ( about 2500 miearly butI wanted to get it taken care of before the winter. ) I went with Autolite Platinum, changed all eight, no issues. Since they were only $1.75 a pack of two I kept a set of Copper tipped as back up. Autolites were gapped straight out of the package, although I did verify anyway. I do like the coil on plugs on the 4.7 it is a lot easier to keep track of, just coil off, plug out, plug on, coil on, reconnect. I did have one issue that may just be a fluke but I wanted to get input anyway.
During installation I started engine and ran moderate rpms after each intallation, more of a personal thing, if they were not good plugs, I wanted to find out right away and isolate any problem plugs/cylinders ASAP. O.K I am getting off track but today during idle testing, I decided to run further up the RPM scale so I went to 4000-4500. Approx 4.2/4.3K RPM it sounded like it was choking and about to stall. I backed off the throttle, let it recover and tried it again just to make sure it wasnt me. Same thing. Once it came back to normal IDLE RPM it was normal, and no further issues. no vibrations, no associated MIL codes. After going out for the afternoon, and having a good stretch of interstate to puch it, I found a deserted area, stayed near a breakdown lane, kept cell phones handy, and punched it to approx 4500 RPM. speed picked up, and went to
4500 RPMbut only for a brief second, then Trans kicked for upshift and rpms dropped. Same result two more tries, no hesitation, no rough idle, no MIL indications, basically no issues. Think this is just a one time fluke or possibly a REV limiter to keep people from blowing engines in normal configuration, you know protecting mechanics from themselves?
Next step Pre winter brake pad/rotor inspection, trans filter/fluid change,and coolant flush/refill. Again trying to get all this stuff done before winter. Standby for further updates.
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From: MINNEAPOLIS, MN
RE: PLUGS
No load, just normal high idle. I think you answered my question. Although there may not be a REV limiter per say from the factory, maybe it was the engine telling me what you said in the last sentence. I guess I won't be doing that again anytime soon, it runs fine, no stalling, and normal idle. As we say in the corrective action of maintenance forms.
OPS CHECK GOOD Signed off. Thanks, I guess it was just me.
Another question along the lines of this installation. I have heard of problems with Platinum plugs, mainly Bosch,but my question is. If there were problems with platinum plugs,would they show up right away, or down the road a few thousand miles? I would figure right away but you never know on stuff these days. Anyone have any input on this?
Steve
OPS CHECK GOOD Signed off. Thanks, I guess it was just me.
Another question along the lines of this installation. I have heard of problems with Platinum plugs, mainly Bosch,but my question is. If there were problems with platinum plugs,would they show up right away, or down the road a few thousand miles? I would figure right away but you never know on stuff these days. Anyone have any input on this?
Steve
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Joined: Nov 2006
Posts: 1,222
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From: Ohio
RE: PLUGS
Magic:
Although I have not tried it myself, most vehicle engines these days have an rpm limiter built in toprotect againstfolks who like to hold the go pedal to the floor and see what happens. My 95 Taurus SHO was limited to 4.5k in neutral. Same reason.
One way to make sure is to take her out on a long stretch and run it up to the limiter. Should shift out at 5.2 -5.4 k. If that works out ok, then you are good to go.
Think about it. Withthe average V8 engine today, you are looking at 5-7k to replace it. That does not include hi tech engines like the Yamaha V6 that was in my SHO. Replacement cost for that was over 9k back in 1995.
Don
Although I have not tried it myself, most vehicle engines these days have an rpm limiter built in toprotect againstfolks who like to hold the go pedal to the floor and see what happens. My 95 Taurus SHO was limited to 4.5k in neutral. Same reason.
One way to make sure is to take her out on a long stretch and run it up to the limiter. Should shift out at 5.2 -5.4 k. If that works out ok, then you are good to go.
Think about it. Withthe average V8 engine today, you are looking at 5-7k to replace it. That does not include hi tech engines like the Yamaha V6 that was in my SHO. Replacement cost for that was over 9k back in 1995.
Don
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From: MINNEAPOLIS, MN
RE: PLUGS
O.k You all got me. I confess, during the plug removal/replacement I lost one, no!!!!, two plugs. During the swapping of #7 plug, I got distracted by the neighbors conversation and next thing I know I am looking for the champion plug that came out and the Autolite platinum that I was trying to get in. I checked the obvious areas, even the throttle body inlet since the over engine air filter panel/box was removed. I checked all areas, under fan, in grooved areas of engine block, track of fan blade, throttle body intake,under vehicle, fenderwells, took about 45 minutes to search, neither plug could. Remember me talling you about having the cooper tips as a backup, well good thing I did, It was pressed into service. So I am running 7 Platinum tips, and one copper but all seems normal. My worst fear was it getting caught in the throttle plate, sucked into the intake manifold,binding up a valve during a cycle and eventually breaking up a plug, and running through the system as foreign object debris. The other pare of that is getting slung out by the fan at a high speed possibly puncturing fender skin. Several searches no luck, I am glad that the engine works fine, and I am not getting beaned on the head or tire flattened at 55 MPH.
I believe the main point of this story, would be to pay attention, and keep track of your parts, I am of course out one plug from the copper tips so that is a non returnable but engine is working and seems to have pretty good power and torque.
I believe the main point of this story, would be to pay attention, and keep track of your parts, I am of course out one plug from the copper tips so that is a non returnable but engine is working and seems to have pretty good power and torque.
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RE: PLUGS
ORIGINAL: MAGIC84
Another question along the lines of this installation. I have heard of problems with Platinum plugs, mainly Bosch,but my question is. If there were problems with platinum plugs,would they show up right away, or down the road a few thousand miles? I would figure right away but you never know on stuff these days. Anyone have any input on this?
Steve
Another question along the lines of this installation. I have heard of problems with Platinum plugs, mainly Bosch,but my question is. If there were problems with platinum plugs,would they show up right away, or down the road a few thousand miles? I would figure right away but you never know on stuff these days. Anyone have any input on this?
Steve
RE: PLUGS
Champion Iridium truck plugs run great on stock. I am using them. Problaby these plugs may outlast my engine. They are suppose to garuantee up to 100k miles before replacement. But I still take them out every 10k to inspect the plugs. Since I installed these plugs, my D idling much smoother and power was smooth all the way thru the power band. Most expensive plug out there. More expensive than Plantinum.
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From: MINNEAPOLIS, MN
RE: PLUGS
So far no problem with the Autolite's. Been about three weeks now, and nary a skip besides what we talked about previously in the post. I will definitely keep the Champion Iridium's in mind for next change or if I notice anything abnormal with this set. I had the Bosch Platinum 4's in my Jeep 4.0 for over five years (not the same set of course!!) and no problems. Before I got the A/L's I thought that there was a general problems with platinum tipped plugs of all types in the 4.7's but sounds like just Bosch and 4.7, definitely something to keep aware of for future reference. Thank's for all your help, standby for further updates regarding my pre winter brake inspection and trans fluid/filter change.
Scientist, I will set the timer for 20k miles and monitor closely.
Scientist, I will set the timer for 20k miles and monitor closely.