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Idakota
Dodge Dakota
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8/15/2005
17:37:34
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 Subject: chattering with superchips, 4.7
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I have an 03 4.7 dak 5spd and have noticed that i get valve chatter when shifting in between gears or udner a heavy load. It happens on the 87 octane program and 91 program, and the chattering goes away completely if i take off the superchips and return my truck to stock settings. It only happens if the engine is completely warm. Would getting cooler spark plugs or a 180 degree thermo. solve the problem?
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GraphiteDak
GenIII
 
8/15/2005
23:42:39
| RE: chattering with superchips, 4.7
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Sounds like pnging. Hopefully you just got some bad gas causing the predetonation. Maybe run that gas down and try premium from another gas station.
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Idakota
Dodge Dakota
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8/15/2005
23:50:37
| RE: chattering with superchips, 4.7
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Thanks for the reply, I thought the same thing about the gas at first but it happens everytime it gets hot no matter what station i use. I still have the factory plugs with 47,000 miles and know i need to change them because its running a little rough, could that be part of the problem?
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Lurkin
Dodge Dakota
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8/16/2005
14:04:00
| RE: chattering with superchips, 4.7
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I have the same problem on my 02, on both the 87 and 91 programs.
I plan on putting in the 180 stat when I change the coolant. If that doesn't work, then I'll try changing to a colder plug (3923)
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daddio
Dodge Dakota
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8/16/2005
14:33:09
| RE: chattering with superchips, 4.7
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try colder plugs first. if that doesn't eliminate it then change the t/stat. if it still pings try some Seafoam through the TB to clean the combustion chambers. if carbon builds up in there it will tend to hold more heat in the combustion chamber and cause premature detonation.
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Idakota
Dodge Dakota
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8/16/2005
19:08:44
| RE: chattering with superchips, 4.7
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I put in some autolite 3923's today, i wanted some NKGs put no one had any. I havent re-tuned with the superchips but i will tonight and will let you know if it helped. Thanks for the advice.
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GraphiteDak
GenIII
8/16/2005
23:43:19
| RE: chattering with superchips, 4.7
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Yeah let us now. I forgot all about the colder plugs.
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Dan
Dodge Dakota
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8/17/2005
02:39:12
| RE: chattering with superchips, 4.7
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What do you mean by heavy load? Because if you have the performance program installed, and are towing/hauling a heavy load that will cause it also. I had the saame problem when i was towing a durango on a tow dolly. You just have to be careful to try and keep the rpms up a little higher while up-shifting.
Dan
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Idakota
Dodge Dakota
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8/17/2005
02:43:26
| RE: chattering with superchips, 4.7
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What i meant by heavy load is like when i am going up a steep hill and not downshifting so the rpms stay low and im on the gas a little more.
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Lurkin
Dodge Dakota
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8/17/2005
11:00:37
| RE: chattering with superchips, 4.7
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When mine does it, it is usually most noticable around 3-4K rpm at about 1/2 throttle
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Idakota
Dodge Dakota
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8/18/2005
03:04:47
| RE: chattering with superchips, 4.7
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Ok I re-tuned my truck and I still have a slight pinging problem even after putting in new autolite 3932 plugs, they helped a little but the problem is still there, interesting side note, as i took out my orignal plugs i saw that they were bosch platinum, I didnt think platinums were recommended for the 4.7? Anyways im going to try puttin in a 180 degree thermo to see if that stops the pinging completely.
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daffydak
GenIII
8/18/2005
09:01:10
| RE: chattering with superchips, 4.7
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Message:
my truck sometimes pings under wide open accelleration with the 87 octane program installed.... I haave 3923s i, and a 180* thermostat... no help at all... it really does it after coming out of second gear into third at WOT.. I tend to back off, it's kinda scary pinging like that..
The truth of the matter is, the 180 stat runs HOTTER then the stock 195 did! it opens at 180, I just dont think it flows enough.. it didn't seem comstructed as well as the stocker did, the 195 will go back in soon.... on cooler days it stays around 180 degrees with normal driving, when it's warmer out it gets up around the 195+ range (I've had it over 210 before)
Dan
MOPAR=More Power!!
00 CC Sport Plus 4.7L 4X4 Auto, 3:55 LSD
Straight dual catack exhaust, adjusted tps to .76V, ported TB, home brew intake setup w/K&N filter, Superchips 3715 Tuner, 180* T-stat... more mods to come!!!
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.boB
Dodge Dakota
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8/18/2005
10:45:42
| RE: chattering with superchips, 4.7
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Heat in the heads is a major contributer to detonation. There are other factors, of course, but that's a big one. Cooler plugs are slightly helpfull.
Going to a well built, balanced 180* thermostat and adding a surfactant (Water Wetter) will really help to pull some heat out of the heads. Mr. Gasket makes a nice thermostat for the 5.2/5.9 that can be adapted to the 4.7.
CAI will also help a little.
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03 QC Sport +
Dodge Dakota
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8/19/2005
10:01:21
| RE: chattering with superchips, 4.7
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I have the same problem with pinging in my 03 4.7 automatic with both the 87 program and the 91. Only under WOT at 3500-4000 rpm. I run 93 octane with the 91 program and 89 with the 87. Changed spark plugs with OEM Champions at 30,000 miles.Problem disappears when stock program is installed. I wondered if a 180 thermostat would help as well. But who makes a 180 stat. for the 4.7? Do I need to send the programmer back for warranty? If it was just minor pinging it wouldn't be a problem but it is very pronounced.
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GraphiteDak
GenIII
8/19/2005
13:02:43
| RE: chattering with superchips, 4.7
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Message:
Hmm. Mine only pinged when I used the 91 setting on 89 fuel. 91 octane cleared mine up. I do have a 180 t-stat but it IS hot here.
180 t-stat is the same as the older Magnum engines. The same as in it DOES fit. But you have to cut a notch in it for the gasket and I hear there are some flow issues with certain ones.
Here's some pix I took back in the day :)
This is the OEM t-stat.
It has some sort of extension on the back though. Someone said it closes some bypass port or something. May not effect people in warmer climates. No Check Engine Light here from it.
There's a 3.9/5.2/5.9 t-stat modified to fit.
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superb1993
Dodge Dakota
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8/20/2005
19:52:56
|  RE: chattering with superchips, 4.7
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I have a 00 4.7 and I only get a chatter when I start the truck. Once its warm it doesnt have a problem. It has 89000 on it. And it still runs like a champ.
TBS,Headers,catback,jetII,intake K&N,relocate IAT, Auotlites,plasma,HO cams intake,lowered 3-5,toxic shocks,100 shot nos.
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