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1994 Chrysler Lebaron turns over but won't start.
08-08-2011, 05:32 PM
Post: #1
Exclamation 1994 Chrysler Lebaron turns over but won't start.
I have a 1994 Chrysler LeBaron V6 3.0L. I took it apart to replace some parts and now it won't start. The engine turns over just fine, but won't pop. It sounds like it really wants to and every now and then it will pop a little bit but won't run. I replaced the radiator, water pump, water tube, supply/return fuel hoses, intake manifold gaskets, plenum gaskets, distributer cap, rotor, and coil/plug lines. I cleaned everything I came across while taking it apart and now it is back together. I confirmed that the timing is correct. When the key is turned to on, fuel flows out of the supply line so I know I am getting fuel, but it stops after a second or two so I'm not sure if the engine actually has to be running/turning over for a constant flow. I listened to each injector and heard clicking so I know they are working. All my vacuum lines and electrical connectors are attached. I replaced my fuel pump and filter about a year ago and the fuel pump fuse and relay are both good. My car WAS running before I took it apart, so I don't see how something could have just went bad, like a sensor or relay. After turning it over I pulled the plugs and only numbers 3 and 6 were wet (barely), the rest were dry. Any ideas?
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08-09-2011, 01:11 AM
Post: #2
RE: 1994 Chrysler Lebaron turns over but won't start.
Just to clarify your issues/ worries with the fuel pump, it will run for roughly 2 seconds when you first turn the key on and then not again till it cranks... and which point it will turn off again 2 seconds after you stop cranking.

That said, the 3.0 engine has a timing belt which needs to be changed on a schedule. If you are over 90k miles that might be a problem, especially since the timing belt needs to come off to do the water pump and that water tube. Basically I am asking if you got it back on correctly or replaced it during the job.

Let us know if this helps.
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08-09-2011, 09:48 AM
Post: #3
RE: 1994 Chrysler Lebaron turns over but won't start.
The timing belt is in great condition and I re-installed it properly.
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08-09-2011, 09:51 AM
Post: #4
RE: 1994 Chrysler Lebaron turns over but won't start.
OK, so back to basics.... when it doesn't start are you missing fuel or spark?

What happens if you add a small shot of starting fluid?
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08-09-2011, 10:21 AM
Post: #5
RE: 1994 Chrysler Lebaron turns over but won't start.
Tried spraying inside the throttle body nothing happened. All plugs have spark. I am not 100% sure on the fuel supply though. The plugs weren't wet with gas after I cranked it and pulled them. But I'm sure the injectors are operating, and there doesn't seem to be any leaks.
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08-09-2011, 10:31 AM
Post: #6
RE: 1994 Chrysler Lebaron turns over but won't start.
Sounds like it's time to go back over your work. More specifically look at fuel pressure and timing. (cam timing too?)

What I'm driving at is if you have spark and you add fuel (starting fluid) without results then that leaves timing (spark at the RIGHT time) or possibly a compression issue, which could be due to the cams being off a bit. On the same topic, does the dist rotor point in the right place when lined up at #1 TDC?
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08-09-2011, 11:01 AM
Post: #7
RE: 1994 Chrysler Lebaron turns over but won't start.
The rotor does line up with #1 at TDC. How could I check for an issue with compression? When I put the timing belt back on at TDC, all the special marks lined up correctly.
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08-09-2011, 09:37 PM
Post: #8
RE: 1994 Chrysler Lebaron turns over but won't start.
You would need to use a compression gauge, which screws into the spark plug holes.

Now, before you go that far let me ask if the engine sounds the same when cranking over? Typically if you missed a tooth or two (possibly on one side?) the cranking will sound uneven as the engine spins.... or it will crank faster than normal due to low compression on all cylinders. Either of the above is possible if the belt tension is not correct and it skipped a few teeth after assembly.

To paraphrase something I posted earlier.... if everything seems ok but it still wont start then you have missed something.

Seeing as there are only 3 things needed to make it run (spark fuel, and compression, all at the right time) that kinds of narrows things down.
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08-10-2011, 09:37 AM
Post: #9
RE: 1994 Chrysler Lebaron turns over but won't start.
I didn't notice any unusual sound when cranking it. I'm going to try a couple things today, if all fails then I guess its back to the timing, and I will take it back apart (which I was trying to avoid). I'll let you know my results this evening. Thanks.
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08-10-2011, 11:29 PM
Post: #10
RE: 1994 Chrysler Lebaron turns over but won't start.
I'll be away for a few days but post anyway and if you need help perhaps on of the other moderators can chime in.
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