Our van went dead, had it towed home....made quick check, had to replace coil pack. Van started and ran for about 2 weeks...BOOM...went dead again, made visual check of van and everything looked ok.....coil pack, crank sensor, cam sensor etc.... all checked out ok.......had check engine light code 353...i checked wiring system, noticed RED/YELLOW wire (ignition coil cyl. 3 and 6 driv) from computer to coil pack was giving me a grounded signal, so i disconnected the RED/YELLOW wire from plug, and the van started with misfire...was advised to replace computer......computer was replaced with rebuilt one.........now i get a grounded signal from the GRAY wire (ignition coil cyl. 1 and 4 driv) from computer to coil pack.......... RED/YELLOW wire is ok with NEW computer but still have misfire...........................................................................................................
...............................when all 4 wires are plugged in, from computer to coil pack, van will not start with either computer.....lost at this point....HELP!!! thanx in advance=)
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Crankshaft position sensor maybe , throttle position sensor , coolant temp. sensor etc.... It could be a lot of thing's . Instead of buying this part an that part ,take it an have it diagnosed . To a good ASE certified repair shop . Unless you like buying unneeded parts .
Amazing.....At this very moment in time.....my 2000 silhouette is doing the same thing....if you were unaware.....ventures Montana's and silhouette are from the same mold. Very similar in all aspects. My diagnostics have got to the fuel pump part of suspects....but I have already checked filter, relays, fuses and ignition electronics....my latest suspect is the pressure sensor that monitors the pressure of the gas tank....there is also a pressure sensor on the injector rail I'm suspicious of. I'm going to find out how to place each sensor in "okay ....fuel pump turn on and pump fuel to the throttle body" to check them. In my case....I don't smell any gas after turning the engine over....trying to start it.....sometimes for over an hour....never any gas smell....so I suspect fuel delivery is the problem. The fuel pump has several sensors that control whether or not it needs to run....and pump gas. I can hear my fuel pump run for 2 or3 seconds when I turn the ignition to the on or start positions.testing all of those sensors is my plan of action for this 3 day weekend. Your on track with your work and suspicion of the position sensors......vacuum leaks will follow the sensor checks. Vacuum leaks could cause a couple of sensors to fail too.....I dropped my fuel tank last weekend....and found the fuel pump to be in working condition.....I removed my fuel filter and punched a hole through it for free flow.....to eliminate it from the list...after checking the vacuum angle....I will move to the electronics side.....with the ignition switch first and the transmission position indicator switch following.....I've plugged my trouble code reader in and didn't get any indication of any failed electronic devices......my problem and your problem seem to be very similar, except that I am doing all of my work on the van myself. I will try to keep you informed of my diagnostics through fix it.it would be nice to know how yours is advancing too.....there are a few directions you can progress into.....hope one solves your problem....if not.....there will be more ideas to come....until I solve my problem....good luck to. Us both and onward we go......Nick.ps couldn't spell or grammar check because I'm using my phone to compose....and the typing pad covers the entirescript being typed. Sorry for any problems. Associated
If I understand your question correctly, The LED blinking in your dash means that your anti theft circuit associated with the electronic chip in the black plastic covered key has been activated. I had the same thing happen in a 2000 Ford Freestar van. My battery went deader than dead one winter. I called AAA for a jump. When they hooked up the cables, that light started blinking and blinked faster when I turn the key. I had to have it towed to Walmart as the battery was almost new. They put it in and it wouldn't start. Thank God for AAA+ as I had to have it towed to Ford to get the computer reprogrammed. Here comes the hook. I also had to have my wife's key because they can only program it with 2 keys. Either I pay a cab for a 24 mile round trip or I pay an extra $20.00 for a new key. Hmmm? Moral to the story? Have 2 keys with you when you take it to Dodge for reprogramming. Good luck.
P.S. I will also e-mail this as requested. I posted it here for the benefit of anyone else who needs it.
Have the codes read. This will start you in the right direction. Quit taking advice from people who are guessing. The van died , the check engine light is on. read the codes and then we can help. Unless you want me to guess also.