 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Car Forum / Dodge / Dodge Cars / March 2005Caravan, 3.0 L, engine misfire
I have a 1999 Dodge Caravan with a 3.0 L. The engine is missing under load, and I get a report of misfire in cylinder 1 when I read the codes. Garage has tested everything: spark plugs, injector sugnals, fuel pressure. I did a tune up (wires, rotor, dist. cap) no help. Had the fuel system cleaned too, no help. Swapped plugs around, fault stays on cylinder 1. Just recently I have started to get a MAF sensor fault (reads high impedance) and a multiple misfire code too. Garage doens't have a clue, other than possibly a bad injector for the missing. Anyone have some other things I could test or read through ODB II? I have a scanner. Any help appreciated. Steve > I have a 1999 Dodge Caravan with a 3.0 L. The engine is missing under load, > and I get a report of misfire in cylinder 1 when I read the codes. Garage [quoted text clipped - 11 lines] > > Steve You need to perform a compression test, If it is low you can try to decarbonize the combustion system with a product that Chrysler sells, Make sure you are using 87 octane fuel also. Glenn Beasley Chrysler Tech >> I have a 1999 Dodge Caravan with a 3.0 L. The engine is missing under >load, [quoted text clipped - 21 lines] >Glenn Beasley >Chrysler Tech Also possible you've got a worn or loose valve guide. Problem is not as common as in the past, but apparently it still happens. Kind of what Max power said...do a compresion test. Now, if the compression is low then you would have to do a wet test, meaning that you squirt some oil into the combustion chamber and check the compresion again. if the pressure is higher then that means you have bad piston rings, but if the pressure doesn't change than maybe perhaps your valves are bad. Worst case scenario: engine overhaul.....very costly and depending on how you feel about it if you think it's worth it then go for it, but if not then its just one of those things that u learn to live with. Garage had done the compression test and it was fine. Any chance it could be a bad injector? What about the fuel filter, could that cause it? > Kind of what Max power said...do a compresion test. Now, if the > compression is low then you would have to do a wet test, meaning that you [quoted text clipped - 5 lines] > it, but if not then its just one of those things that u learn to live > with. >Garage had done the compression test and it was fine. > [quoted text clipped - 10 lines] >> it, but if not then its just one of those things that u learn to live >> with. The guides in my 88 NewYorker were so bad it's a wonder the valves didn't come up through the guides, and the compression still checked out fine - but it didn't run worth a hill of beans, and used a lot of oil (and did not smoke) Those Mitsi engines wear the guides real bad. New guides and a valve job is a must after about 100k miles. problem used to be worse but they have improved the heads and they are better now. > I have a 1999 Dodge Caravan with a 3.0 L. The engine is missing under load, > and I get a report of misfire in cylinder 1 when I read the codes. Garage [quoted text clipped - 11 lines] > > Steve |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.