2006 Dodge Caravan
Engine size = 3.3L V6
Warning lights: Check engine light on and off.
Repairs for this problem: Fuel injector cleaner.
Question: What causes bucking at about 45.

Answer: When the check engine light is on, the computer has seen something in the emissions system or your Dodge that is not functioning properly. If the the engine is bucking whn accelerating from 45 MPH as to make a pass, this may be a problem in the ignition system. Acceleration at a higher speed puts a heavy load on the ignition. Most common is faulty spark plug or spark plug wire. A scan of the computer for stored trouble codes may indicate which cylinder has the problem. A code like P0300 or P030X, where X is the cylinder number. If you are at a steady speed and the bucking seems to come and go, this could be a transmission problem in your Caravan. Again, computer codes are the key. I would start by looking at the ignition. If the engine light is flashing, this mean that it is definitely an engine misfire, and is bad enough to cause catalytic converter damage. That's what the flashing means. It is more serious and needs to be looked at as soon as possible.


Plymouth Voyger 1996. Engine Size : 3L.
Question Here.  I try replace thermostat. But one screw broke.How I can remove broken screw without damaging aluminum engine body? Aluminum body and steel scre (rust or corrosion). Any idea. Thank You.

Answer: u are going to need to either use an easy out from a tap and die set, or drill out the screw with a cobalt bit.

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    A 3-way catalytic (TWC) converter is used on most newer cars and trucks in order to control the exhaust emissions of hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx). The catalyst within the converter promotes a chemical reaction which oxidizes the HC and the CO that is present in the exhaust gas. This process will convert the HC and the CO into a water vapor and CO, and will reduce the NOx, converting the NOx into nitrogen.

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