2003 Chrysler Town and Country won't start

Tiny
IMSLOAN
  • MEMBER
  • 2003 CHRYSLER TOWN AND COUNTRY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 138,000 MILES
2003 Chrysler Town & Country, 3.8L V6, It drove good then after being parked at work it won't start at the end of the day. Engine turns over but won't crank. Spark plugs are getting spark. I can't find a valve on the fuel rail/line to check for pressure from the fuel pump. I not only checked the starter relay but since most all of the relays are the same, I changed them around. (From the wiper relay to starter relay--same relay number). How would I check the fuel pump? How would I check for a timing belt problem? I feel it's either the fuel pump, timing belt, or one of three sensors. I can't get it to a shop to look for engine codes. Turning the key on and off trick doesn't work for getting codes displayed on the dashboard?
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Saturday, January 16th, 2010 AT 11:43 AM

3 Replies

Tiny
MATHIASO
  • MEMBER
Hello imsloan

Welcome to 2carpros

One way to diagnose a broken timing chain is to pull the valve cover and watch the valves while the engine is cranked. No movement means the cam is not being driven.
(3.8 has timing chain)
You will need to properly relieve the fuel system pressure.
Disconnect the negative battery cable and drain the cooling system.
Remove the intake manifold with the throttle body.
Disconnect the coil wires, sending unit wire, heater hoses and bypass hose.
Remove the closed ventilation system, evaporation control system and cylinder head cover(s).
Clean all gasket mating surfaces


http://www.2carpros.com/forum/automotive_pictures/46384_valve_cover_1.jpg



the fuel test port is located on the fuel rail


http://www.2carpros.com/forum/automotive_pictures/46384_0996b43f80209622_1.jpg

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Saturday, January 16th, 2010 AT 3:03 PM
Tiny
IMSLOAN
  • MEMBER
In the answer, the fuel rail is not in the same location. But here's what I've found. I checked all fuses and relays. I cannot hear the fuel pump coming on, even for a second. Disconnected the fuel line from the fuel rail above the engine and no fuel coming out (here is something I'll refer to later). Disconnected the fuel line after the fuel filter and no fuel comes out except a dribble that may have been remaining in the line, cannot hear fuel pump engaging. I disconnected the battery and then re-connected it in case some code was causing the pump to not work. No change. I disconnected the electrical plug that goes to the fuel pump. Voltage checks good. Plugged it back into the fuel pump and now I hear the fuel pump coming on for a few seconds then shuts off (sounds normal) but no fuel coming out of the disconnected lines (must be a clogged fuel filter--right?--But how does a fuel filter clog so fast? It usually begins to get suggish first). After a hassle with Autozone by the next afternoon I'm installing a new fuel filter. While re-disconnecting the fuel line at the end of the fuel tank and before the line runs the length of the van, a little more fuel comes out on my hand. Where did that fuel come from? Noooo, it can't be! The fuel lines have spring loaded valves! This stops the fuel from flowing should they not be connected correctly or come off. That's why no fuel came out when the pump started working! I've already bought the new filter so I finish installing it anyway. All lines connected except at the engine fuel rail. I turn the key, hear the pump come on and then off. I go to the fuel line at the fuel rail, insert a screw driver to compress the spring loaded valve, and fuel shoots out. I connect that line back to the rail and the engine cranks. Soooo, apparently the only problem must have been a bad connection with the electrical plug at the pump. (72 hours of hassle and wasted time, hassle with Autozone for the part that didn't get delivered, then had to drive 35 miles to get the part, an afternoon doing the testing in the rain. No, a raincoat doesn't help while I was laying under the van in a puddle of rain water. All for a simple connection that just needed cleaning. Oh, I took the old filter home-blew air into the inlet line and fuel came out the outlet line-with the sping valve compressed).
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Monday, January 18th, 2010 AT 11:42 AM
Tiny
MATHIASO
  • MEMBER
Hello imsloan

good job,

Certain things we never think about, like simple restriction in lines or bad connection at the fuel pump could be problem to the fuel supply.
Keep your eyes on the fuel pump.
Thank you for your donation and for visiting 2CarPros. Com we hope to help you again the next time you need us
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Monday, January 18th, 2010 AT 1:10 PM

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