Last post on Oct 23, 2006 at 2:11 AM
You are in the Chrysler/Plymouth Voyager, Dodge Caravan
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Dodge Caravan, Dodge Grand Caravan, Chrysler Voyager, Plymouth Voyager, Chrysler Town and Country, Van
#2660 of 4276 1990 Gr Caravan 3.3 stutters/stalls
Apr 21, 2005 (10:55 pm)
I am original owner of van with 290,000 miles. Very well maintained, and except for known transmission problems, never left me stranded. I have the Dodge service book.
Current problem: Intermitantly, when engine is warm (at least 5 miles driven), engine stutters, and may quit, but may recover after stuttering for 5-15 seconds and run fine for another 5 minutes or 2 days. Some days no problem at all. No engine trouble codes are generated. Except for tach jumping, I see no other symptoms. (all lights maintain brightness, etc.) With 2 exceptions, I can cure problem by turning ignition off and restarting engine. Problem may occur when at stop light, or on interstate at 70 MPH. When acting up, I have verified fuel pressure at 50PSI, so not a fuel pump problem. I have used an inline spark tester, and problem corresponds to erratic spark. I have replaced plugs & wires with new, and TPS, Idle air controller, coil, wiring harness, and computer with others from junk yard, with no change. I have had it to a service shop, where OBD computer was hooked up within 10 minutes of it just about not restarting (2 exceptions above) and nothing looked out of specs and it ran 45 minutes without a hic-cup.
Problem is similar to that of shelleybabee from Oct 27, 2003, but I do not see the resolution to that post.
Any input would be appreciated.
Apr 22, 2005 (8:24 pm)
Have you tried cleaning the throttle body?
#2662 of 4276 Re: 1990 Gr Caravan 3.3 stutters/stalls [chubb2i]
Apr 23, 2005 (5:40 am)
If the vehicle bucks and stalls and then starts right up, check/replace your crankshaft position sensor. It's located on the top/side of your bell housing. Also check your camshaft position sensor.
I would guess it's one of those two. Start with the crankshaft. It's not uncommon for them to go bad on Chrysler's.
#2663 of 4276 Re: 1990 Gr Caravan 3.3 stutters/stalls [chuckg]
Apr 23, 2005 (10:14 am)
Throttle body is clean. I have kept up with that maintenance.
I replaced the cam position sensor yesterday, and will see what happens there. I have not (yet?) replaced crank position sensor. In reading the service book, the cam position sensor seemed to control spark more so than crank sensor.
I had a previous problem (unrelated to this one) where it was hard to start, but once running, did fine. I found a trouble code that the temperature sensor was bad, and replaced that, and the hard start problem was gone. I suspect maybe similar situation here, where a seemingly unrelated component is going bad, and causes the computer to give a weak or no signal to the coil bank and cause stuttering. But I am guessing.
Thanks for input.
Any way to contact shelleybabee from older post, and find her(?) resolution?
#2664 of 4276 Re: 1990 Gr Caravan 3.3 stutters/stalls [chubb2i]
Apr 23, 2005 (10:16 am)
shelleybabee has their email marked private and has not been in the Forums for quite some time (years).
#2665 of 4276 Re: 1990 Gr Caravan 3.3 stutters/stalls [chubb2i]
Apr 24, 2005 (5:39 am)
chubb- Let us know how you make out.
#2666 of 4276 Re: A/C Heater Fan Weirdness [gino45]
Apr 24, 2005 (4:07 pm)
I have replaced the same resistor pack on my 2001 Caravan twice. It went out this morning again! I took an old (bad) one and looked at the thermal fuse (metal bodied part looks like a capacitor) to get the rating. For the record, The OEM part ID for the thermal fuse is MICROTEMP KKJAFW G4A15 TP 128c. I researched Microtemp on the web and noticed that the part is no longer listed on Microtemp's website (if you can call it that). The G4 series is apparently discontinued or just not listed. It is supposed to be rated 10 amps, but I think it's more like 4 amps. If 4 amps is indeed the rating, then it is borderline for a 12v DC motor. The inductive load at turn on is probably what is blowing the thermal fuse. DO NOT DESPAIR! I found a replacement thermal fuse at Radio Shack (of all places). The R/S Part Number is 270-1322 and cost is $1.49 US. It has the same 128 Degree Centigrade rating as the original. The Microtemp Part Number(s) is MNMABM G4A00 TF 128c (R/S Specification says it's 10 amps). I was able to remove the steel shield from the assembly to get to the thermal fuse (use a permanent marker to reference the shield, plastic body, and PC board so re-assembly won't be confusing). Snip the original leads just past the bends away from the fuse body. Place the new fuse (with leads bent to fit in place). Then solder in place. BE SURE TO USE A HEAT SINK BETWEEN THE SOLDER POINT AND THE FUSE BODY! I used 2 alligator clips from R/S PN 270-0346 pack of 10 $ 2.79 US, to heat sink and hold in position while I soldered one side, then the other. Before I re-assembled, I used an ohm meter to verify fuse continuity. After I assembled the resistor pack, I re-installed on the Caravan, and viola it works! I now have several spare assemblies (that I have repaired), and can replace if it happens again. If you aren't very good at soldering, you might be able to find someone that can do this for you (for a few beers Ha Ha). Keep the old assemblies so that you can repair them for future replacements. Total cost for repair was $ 7.26 US. That was for 3 thermal fuses and the bag of 10 alligator clips. Much better than $ 13 US for replacement assembly! Good luck, and I hope you get you fan problem sorted out!! Caravandal.... Suwanee Georgia USA.
#2667 of 4276 Re: 1997 grand caravan fuel gauge warning problem [jingle1]
Apr 25, 2005 (2:49 pm)
4/25/2005 My Grand Caravan just started ringing for low fuel on a full tank last week. I have checked fuses but no problems there. Making appointment soon.
#2668 of 4276 Rough Idling slight back fire.
Apr 27, 2005 (7:00 am)
Since the end of winter and the start of spring my 2000 Caravan has been running rough. This happens in the mornings and once the engine warms up it runs smooth. I've changed the fuel filter, air filter, oil change, timing belt (replaced last summer), tune -up (done last summer). I've also added good quality injector cleaner to a full tank of gas. And still it runs rough and sometimes a little back fire occurs. None of my check engine lights come on. Has anyone experienced this problem.
Apr 27, 2005 (11:46 am)
Have you cleaned the throttle body?