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Pickups Dodge Dakota Dodge Dakota - FAQs
241 messages, Last post on Dec 31, 2007 at 3:13 PM
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Replying to: dustyk (Dec 19, 2005 7:35 pm) Do you have a preference on these plugs and if so, why??
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Replying to: dustyk (Dec 19, 2005 7:35 pm) The preferred spark plug is perhaps the Bosch Platinum +4 (4418) When changing the spark plugs on the 4.7L engine do not forget the following. 1) Use compressed air to blow any debris from the hole BEFORE removing the sparkplug. 2) Apply antiseeze to the sparkplug threads. 3) Apply silicone to the O-rings of the ignitors before reinstalling.
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Replying to: jneal (Dec 20, 2005 7:50 am) I only have experience with the factory supplied Champions and the Bosch Platinum Plus 4s. I changed the factory plugs out at 10,000 miles because of an intermittent lumpy idle and very slight and only occasional cold weather hestitation. I just replaced the Boschs at 50,000 miles. They looked very good and I'm sure they would go another 50K. When I went from the Champions to the Platinum+4s I did not feel any difference in the way the engine ran, except the lumpy idle and occasional cold weather stumble seemed to disappear. There was no change in fuel consumption and I do not believe any change in overall performance. When I changed-out the +4s for another set, I did realize about a 1.7 MPG increase in fuel mileage and I felt some increased responsiveness in the low end. I must also say that I replaced the air filter and PCV valve, as well as cleaned the throttle body and air port. At this moment I am not inclined to believe that the Bosch plugs offer a lot more than the Champion Copper Plus that came with my 4.7. In all fairness, I should try another set of the Champions before I can conclusively be convinced, but I have worked on a few Dak 4.7s with 50-60K on the factory plugs and they seemed to be running fine, albeit they ran better after a plug change. Maybe after 40K on Champion Copper Pluses Id being saying the same thing. I don't know. One thing I can say for sure is that for most drivers with the 4.7 the Champions are probably a pretty good spark plug and you won't go wrong if you continue to use it. You should go longer with platinum, however. Bests & Merry Christmas, Dusty
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Replying to: bpeebles (Dec 20, 2005 3:42 pm) Good comments on 4.7 spark plug maintenance. At 50K everything looked almost like new on my 4.7. The O-rings are still pliable and appear to be sealing well. The one curse is the cooling line clamps that secure the metal heater lines that run in front of the throttlebody. I broke one the last time and broke another this time. The right side clamp is 05015518AA, by the way. I also broke the end of the PCV valve off trying to remove the vacuum line. Fortunately I had a new valve (53032800AA) in hand. Be sure to remove the inlet duct from the air box before attempting to remove the PCV valve. The valve does not simply pull out, but twists out by camming action, and to properly access the PCV valve requires good access. Looking at the PCV valve head on from the right side of the vehicle, the PCV valve must be rotated downwards (counterclockwise) and may then be withdrawn. Bests & Merry Christmas, Dusty
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Replying to: dustyk (Dec 23, 2005 11:59 am) |
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| hey ppls i have a standard 2000 4.7 dakota and i was wondering if any of you have run one stock in a 1/4 mile. i was wondering what they run. and i've seen the new dakota r/t's from the 2006 line. why are they using an inferior engine to the 5.9? | |
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Petroleum-based Dexron-Mercon automatic transmission fluid (ATF) was originally designed for General Motor’s automatic transmissions and has been in existence since the early 1950s. In "normal" service Dexron-Mercon will provide an approximate 100,000 miles service limit when operated in a steady 175 degree F environment. Dexron-Mercon ATF, like all other types, are easily deteriorated from heat, friction, moisture, and other contaminates that cause oxidation. As oxidation advances, clutch and other component operation are adversely affected, and likewise as component and clutch operation degrade, ATF deterioration advances. This causes a rapid, non-linear effect in overall fluid deterioration and subsequent lack of fluid performance. The approximate life expectancy of petroleum-based Dexron-Mercon ATF types are shown in the following commonly distributed chart. Keep in mind that the chart only considers temperature variation. Contamination from moisture or other materials will advance the fluid’s deterioration and expiration: 175°F.............100,000 miles 195°F..............50,000 miles 212°F..............25,000 miles 235°F..............12,000 miles 255°F...............6,000 miles 275°F...............3,000 miles 295°F...............1,500 miles 315°F.................750 miles 335°F.................375 miles 355°F.................187 miles 375°F..................94 miles 390°F..................47 miles 415°F...................5 miles NOTE: The above chart has not been verified for accuracy, however is included here to illustrate the relationship of operating temperature to ATF longevity. A little known fact is that Chrysler Corporation has for some time had its own proprietary ATF, eventually known as ATF+ (ATF "plus"), and since the mid-1950s this fluid was designated "fill-for-life." This meant that under "normal" driving conditions the transmission fluid was serviceable for the life of the vehicle and did not require routine service. "Normal" driving conditions were defined as a vehicle that was NOT used for police, taxi, or other commercial operation, towing or exceeding the vehicle load specifications, not operated in dusty conditions, at high speeds in greater than 90 F ambient temperatures, excessive idling, or above average short trip or stop-and-go driving (city). In addition, Chrysler stipulated that if any amount of Dexron-Mercon was added to the original factory fill, the fluid and filter required replacement every 25,000 miles. Chrysler permitted use of Dexron-Mercon in their older series of transmissions (A-904, A-727) for many years but strictly for the purposes of maintenance or over haul. Since its inception, Chrysler has improved on the original ATF+ with ATF+2 (7176D), ATF+3 (type 7176E), and the current ATF+4 fluids and now recommends the use of ATF+4 (type 9602) and prohibits the use of Dexron-Mercon, with a few exceptions. Jeep vehicles using the Aisin-Warner transmissions (AW-3, AW-4) must use Dexron-Mercon. In addition, all 1999 and older mini-vans should continue to use ATF+3 to prevent torque converter shudder. For all other Chrysler-built cars and trucks, any transmission originally supplied with ATF+, ATF+2, or ATF+3, should use type 9602, ATF+4. Chrysler states that ATF+4 may be used when adding fluid to all vehicles originally supplied with ATF+3. Some earlier Chrysler vehicle owner’s manuals stated that Dexron-Mercon could be used, and some dipsticks are marked "Use Dexron-Mercon." This is an error, however. Dexron-Mercon should not be used in ANY Chrysler-built vehicle. USE Despite the myth perpetrated by many, Dexron-Mercon is not a universal transmission fluid. And just like the prohibition against its use in Honda, Nissan, Toyota, and some Ford products, Dexron-Mercon should not be used in ANY Chrysler-built motor vehicle. In addition, all packaged ATFs of whatever type are not necessarily the same. If you look closely at the various manufacturers of Dexron or Mercon, for example, you will note there are significant variations in the fluid specifications. There is even disagreement in the industry of whether Mercon V is compatible with older transmissions specifying the use of Dexron IIE or III. The same situation holds true for non-OEM manufacturers of ATF+3. Chrysler’s prohibition against the use of any fluid other than the appropriate ATF+ is not arbitrary. ATF+3 & 4 are highly modified fluids. ATF+ 3 and 4 contain a unique and patented friction modifier formula that is integral to the transmission design and is required to maintain the original shift quality, and ultimately the design life of the transmission. This makes the shift and clutch engagement quality of Chrysler transmissions extremely sensitive to ATF characteristics. Despite claims otherwise by transmission repair centers or competitive lubricant manufacturers, Dexron-Mercon altered with generic friction modifiers are NOT equivalent with the design specifications of ATF+ series fluids. ATF+3 ATF+3 is an advanced fluid that replaced factory fill ATF+2. It is specifically formulated to Chrysler automatic transmission designs and is necessary to maintain factory shift quality and overall transmission performance. Although a Chrysler proprietary formulation, ATF+3 has been licensed by Chrysler for manufacture by competing, non-OEM suppliers. Although always a better choice than using somebody else’s fluid, aftermarket ATF+3 formulations are not necessarily the same as the original factory fluid and either shift quality or long term transmission performance and reliability may be adversely affected. |
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ATF+4 ATF+4 is a superior fluid that contributes to increased transmission performance and reliability. Developed by the Lubrizol Corporation and currently manufactured by Havoline, Chrysler Type 9602 or ATF+4 is a specially formulated fully synthetic automatic transmission fluid that incorporates a very high viscosity index (VHVI) base stock and contains a unique and exclusive high-strength additive package. This transmission fluid is engineered to be a "fill-for-life" fluid under normal driving conditions with a minimum practical end life of 150,000 miles. Designed exclusively for DaimlerChrysler automatic transmissions, it is also recommended for certain manual transmissions and all 1999 and newer Chrysler power steering systems. ATF+4 is fully compatible with all transmission applications where Type 7176 fluids (ATF+, ATF+2, or ATF+3) have previously been specified. Through the use of its patented additive package ATF+4 will maintain the original shift quality of all Chrysler designed automatic transmissions. It contains superior properties for low temperature operation to -55 degrees F, and maintains a high viscosity index above 350 F. ATF+4 produces superior wear and rust prevention qualities especially when compared to Dexron-Mercon or aftermarket synthetic fluids. ATF+4 controls oxidation to a much higher degree than Dexron-Mercon series fluids and represents a notable improvement over ATF+3. ATF+4 reduces the effects of moisture and will practically eliminate the formation of deposits in otherwise healthy transmissions. Its exclusive friction modifier composition also controls friction and maintains the minimum surface loss of transmission clutches. ATF+4 contains the maximum anti-foaming characteristics of any currently marketed ATF. ATF+ series automatic transmission fluids must be operated in an ATF+ pure operating environment and are highly susceptible to chemical destabilization from non-ATF+ automatic transmission fluids. With the exception of 1999 and older mini-vans, automatic transmissions designed and manufactured by Chrysler Corporation or DaimlerChrysler using ATF+3 may use ATF+4, either as a supplement or full replenishment. Transmissions originally equiped with ATF+4, however, should never have anything other than ATF+4 added to the system Chrysler has recently allowed licensing of ATF+4 manufacture by non-OEM suppliers. |
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Replying to: dustyk (Dec 23, 2005 11:45 am) 
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Replying to: dodgetrukn (Feb 27, 2006 7:10 pm) If you open the oil-fill snout and pull out the baffle insert, you can see the hole on the side where the PCV valve sucks the fumes out of the crankcase. With engine idling, you can put your finger over that hole and should feel suction. Do not forget that the DC (Damler Chrysler)4.7L V8 is the same engine as the 3.7L V6 (just 2 cylinders lopped off) Many parts (including PCV valve) should be interchangable.
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