'86 Dodge 600 Convertible

Mar 12, 2007 3 Replies

I have a 1986 Dodge 600 convertible with a 2.5 Ltr. engine with



109,000 miles on it. It is terrible on gas and runs very rough. As I am driving along it seems to surge and sometimes seems to have a dead spot happening. This happens if the car is warmed up or not however it happens more frequently when it is warm. I have had a new exhaust system including catalytic converter, wires, distributor, cap & rotor, plugs, fuel filter, head gasket (couple years ago) timing belt (couple years ago) and fuel injector serviced in 2000. The scan test showed that there was a problem with the distributor so I had that replaced but it shows everything else is fine. It obviously isn't and I am wondering what else could it be? Is there a way to tell if there is a malfunction with the car's computer or a leak in a hose somewhere. Any help would be appreciated as I just can't afford to keep taking it to the garage for a game of hit & miss. Thanks. Blondie

go back to the basic's. compression test and check to make sure the timing belt is timed right. if all checks good have someone that has a good scan tool check all inputs and outs of the sensor values.

Glenn Beasley Chrysler Tech

Wow! that's an old one. I didn't think that the 2.5 was offered until later on. I had always thought that only the 2.2 and 2.6 engines were offered for that year, and those were both with carburators.

I had a 2.6, and could never get the carburator adjusted right. The choke also had problems during the winter.

-KM

My 2.5 Ltr. is from Arizona originally, built in Sept. of '86 according to the door plate. It runs the same no matter if it's summer or winter. Always starts but sometimes floods right away from a cold start (revs upon starting sometimes as well)and I have to give it a litlle time to settle or play with the gas. I did read on a site that there was a recal for this year of 600 regarding a problem with the fuel injector system but I notice in the service records that came with the car when I bought it that the work had been done, albeit at a Midas Muffler Shop in Campbell River...Compression test was good and timing belt was timed just fine, I was told by the mechanic that last worked on it. What is the correct way to time it, is there a trick I should try? The mechanic was working on two different vehicles at once and I wonder if he is a good multitasker or if he maybe forgot a step. Is that possible?

Blondie

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