Dodge caravan running rough

[buick7332]

2001 Dodge caravan 3.3 running rough and randomly blowing white smoke. I replaced the spark plugs, wires, ignition coil pack, fuel injectors, fuel injector harness, and computer. Im stumped and don't know what to do. I have not done a compression test. I bought this van new and it has 110,000 miles on it. I don't have a code reader or a local repair shop I can trust. Any help would be appreciated

 

[MrSony]

White smoke usually indicates coolant getting into the combustion chamber. Maybe a bad headgasket. Check the plugs, if they look super clean, that is usually a sign of coolant steaming up and steam cleaning the plugs. Also low coolant level is a tell sign as well.

 

[Turbolq4]

Light a match under the seat!!!!


Just kidding.....kinda

 

[Clone TIE Pilot]

Probably either a head gasket leak or intake manifold leak. May also be a crack in the block, heads, intake.

 

[1evilregal]

have you tried running any gas line anti-freeze (also commonly called dry gas)? basically rubbing alcohol and a few additives to soak up any water in the tank.... if you gassed up at a gas station (usually cheap gas station) you usually don't go to, you may have gotten a bunch of water in there, and getting random bursts of water... would try that before ripping off the heads and intake....

 

[buick7332]

have you tried running any gas line anti-freeze (also commonly called dry gas)? basically rubbing alcohol and a few additives to soak up any water in the tank.... if you gassed up at a gas station (usually cheap gas station) you usually don't go to, you may have gotten a bunch of water in there, and getting random bursts of water... would try that before ripping off the heads and intake....

I did go through the gas tank so I don't think thats the problem. I don't think I have a bad head gasket either. My wife drives the vehicle. When this all started she took it to a local shop and they said the fuel injectors were shot and they wanted $900 bucks to change them. I did it myself and that wasn't the problem. Took it to another shop and they said the computer was shot. I replaced the computer and that wasn't the problem either. I went back in and did the wire harness and coil pack, no luck. I've heard other things to check are the camshaft position sensor, crankshaft position sensor, O2 sensor, egr valve, and tps. I'm tired of throwing money at this thing and not finding the problem. Any suggestions what my next move should be?

 

[TURNA]

Did you check the coolant level?

 

[1evilregal]

I'd def do a coolant pressure test and compression test before moving on to anything else.... I had a caprice years ago that would intermittently blow white smoke, but not run rough... Immediately went to head gaskets, and fortunately, replaced the intake gaskets in the process...

just thought about somethng.... does your engine have a plastic intake? I know that ford and gm both had issues with them cracking and leaking coolant into the passages....can't remember if chrysler had the same issues or not...

 

[pontiacgp]

To read the codes turn the key to run 3 times and the codes will show up in the odometer

 

[CaliWagon83]

If it’s an ‘01, it should be OBD-II. If you have a code reader, should be able to use that as well.