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Dodge Dakota Engine and Underhood Questions

378 messages,  Last post on Nov 25, 2009 at 9:20 PM

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#4 of 378 Re: 2002 Dakota 3.9 Power and Fuel Economy Loss [gafo] by jneal Apr 04, 2006 (6:07 am)
Replying to: gafo (Apr 03, 2006 11:16 am) Either you misunderstood what the dealer was telling you or they were blowing smoke at you. I don't know of any modern production vehicle that uses ignition points and condenser. I'd look for another shop. Replies to this message: gafo (Apr 04, 2006 7:03 am)
#5 of 378 Re: 2002 Dakota 3.9 Power and Fuel Economy Loss [jneal] by gafo Apr 04, 2006 (7:03 am)
Replying to: jneal (Apr 04, 2006 6:07 am) That's why those items are in "quotes". The first dealer wanted to do a mass parts replacement to troubleshoot the problem but $200 for a set of plugs was simply rediculous. They did find a vacuum leak so I let them replace all the lines. Also flush the injector system. The second dealer advised me to do all of the same. When I told them I had replaced the plugs with Bosch Platinum, the advisor looked me straight in the eye and told me that was the problem and that platinum plugs didn't work in Dodge engines. So far, everyone I told about this laughed. They kept the truck for a week and did nothing so I retrieved it on a Saturday. On Monday, he called to ask what we were going to do and did not know that I had picked it up. Now several months have passed and I contacted the service manager of the second dealership and we agreed to try again. He kept the car a week ran and fuel economy tests. They drove it around with some readout device connected and watched several parameters. I don't know if this is all smoke but he said everything is normal. So he contacted his Dodge rep who told him the mileage is normal and that the problem is oxegenated gasoline and at this point I realized that Dodge was "blowing smoke" as you so aptly put it. If you are a mechanic, what should the tailpipe look like if the truck was running normal? Years ago, I was taught not to buy a car if the tailpipe was any color but a mild grey. Thanks for you response. I hope to hear from you again. Gary
#7 of 378 Re: 2002 Dakota 3.9 Power and Fuel Economy Loss [gafo] by dakotaoffroad May 15, 2006 (7:16 am)
Replying to: gafo (Apr 03, 2006 11:16 am) hey, My 02 dakota has the same problem with the fuel economy but i havn't figured it out yet. I also have a bad stalling problem at idle speeds, i sure would like to see 20+ mpg, if i find anything out i'll let you know, i find too that dealerships are just stupid, all money and no brains. Replies to this message: gafo (May 15, 2006 11:48 am)
#8 of 378 Re: 2002 Dakota 3.9 Power and Fuel Economy Loss [dakotaoffroad] by gafo May 15, 2006 (11:48 am)
Replying to: dakotaoffroad (May 15, 2006 7:16 am) I just came back from a trip to Mexico. Drove a liitle over 1k miles and averaged 20mpg with ac running. It is improving on its own. I haven't changed anuthing. Thanks for your response.
#9 of 378 code p 0455 for a 4.7 dakota by sleded Oct 18, 2006 (5:34 pm)
#10 of 378 code p 0455 for a 4.7 dakota by sleded Jun 01, 2006 (4:18 pm)
hey guys im new this the board and i love it already!! i was wondering if anyone knew what that code means? i took the truck in the other day for the check engine light and it was the gas cap!! so he fixed it and today the check engine light came on again. i think its the gas cap but who knows hope u guys can help me out   thanks   eric Replies to this message: sharris806 (Oct 18, 2006 5:34 pm)
#11 of 378 P0463, P0551 by dritten01 Jun 01, 2006 (4:51 pm)
this is my first post, and I am glad I found this site. I have a 2000 4.7 dakota 4x4. Check engine lite on with these codes, but my bigger problem is that all of a sudden a couple of weeks ago my truck is taking 2-3 cranks to get started. Once started it runs great. any ideas? I thought maybe a bad injector, but getting same fuel mileage. today I am also hearing a loud ticking for the first 5 min or so after starting. It eventually goes away Replies to this message: iamsirjones (Jun 18, 2006 6:34 am)
#12 of 378 Cranky Dakotas by scoopyex Jun 10, 2006 (11:28 am)
Depending on Your mileage, start considering the crank sensor to be at fault. I've had this problem myself and found the crank sensor to be the issue. You may have other underlying problems, but replacing the crank sensor or keeping a spare handy just in case isn't a bad idea.. especially if You're stranded on the side of the road some place and all the engine does is crank... providing Your fuel pump hasn't puttered out. Not all sensors cause driveability problems. Also take a good look at the EGR/Solenoid. That can cause irratic cold idles and starting problems... but won't prevent You from starting the engine.
#13 of 378 Re: P0463, P0551 [dritten01] by iamsirjones Jun 18, 2006 (6:34 am)
Replying to: dritten01 (Jun 01, 2006 4:51 pm) It's your fuel pump for sure. I just lived through this. The check valve has most likely failed causing your fuel to drain back into your tank when you shut it off. I too have a 2000 Dakota quad cab 4X4. I thought it was injectors at first but after taking it into the garage they isolated certain areas of the fuel system and found that was the issue....a minor $700 (canadian) it was fixed. Hope this helps although it is not good news.

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