2002 Dodge Intrepid - 3.5L Misfire
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2002 Dodge Intrepid - 3.5L Misfire
in park no misfire.In gear 2,4,6 cylinders are misfiring and falling out, especially on a load.
- steven kiser
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Re: 2002 dodge intrepid 3.5
have you tested compression or condition of spark plugs?
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Re: 2002 dodge intrepid 3.5
Compression is good,spark plugs are good.Would a vacuum leak from the plenum cause this problem,it sounds like its leaking bad.
- ricmorin
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Re: 2002 dodge intrepid 3.5
These intakes hiss alot anyway, but I wouldn't overlook it. Can you access fuel trim data and check the differences bank to bank?crownvic wrote:Compression is good,spark plugs are good.Would a vacuum leak from the plenum cause this problem,it sounds like its leaking bad.
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Re: 2002 Dodge Intrepid - 3.5L Misfire
I know about the hissing,this has a high pitch whistleing.bank 1 lt-9.0 bank 2 lt-32.0 in gear
- ricmorin
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Re: 2002 Dodge Intrepid - 3.5L Misfire
Curious. It is higher on the side with the problem, but I would have expected it to be on the plus side, not removing fuel.crownvic wrote:I know about the hissing,this has a high pitch whistleing.bank 1 lt-9.0 bank 2 lt-32.0 in gear
Are you sure those readings are negative readings?
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Re: 2002 Dodge Intrepid - 3.5L Misfire
In park bank 1 st0.0 lt-32.8 bank 2 st0.0 lt3.5
In gear bank 1 sto.o lt-2.5 bank 2 st0.0 lt-32.8
In gear bank 1 sto.o lt-2.5 bank 2 st0.0 lt-32.8
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Re: 2002 Dodge Intrepid - 3.5L Misfire
Weird. Something is changing drastically when put into gear. I'd be looking at wiring harnesses, vac lines and intake boot. Something that could change if the engine is loaded. Weird.crownvic wrote:In park bank 1 st0.0 lt-32.8 bank 2 st0.0 lt3.5
In gear bank 1 sto.o lt-2.5 bank 2 st0.0 lt-32.8
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Re: 2002 Dodge Intrepid - 3.5L Misfire
That's what I initially thought, but the trims would be adding fuel, not taking away as posted.
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Re: 2002 Dodge Intrepid - 3.5L Misfire
Would a clogged converter cause this? The up strean o2 sensor is staying at 4.99 volts on that bank.
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Re: 2002 Dodge Intrepid - 3.5L Misfire
Well, yeah. 4.99 volts is way too high for an o2!! That would make the computer take fuel away. I'm surprised you don't have an o2 code in it.crownvic wrote:Would a clogged converter cause this? The up strean o2 sensor is staying at 4.99 volts on that bank.
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Re: 2002 Dodge Intrepid - 3.5L Misfire
+crownvic wrote:In park bank 1 st0.0 lt-32.8 bank 2 st0.0 lt3.5
In gear bank 1 sto.o lt-2.5 bank 2 st0.0 lt-32.8
I missed this. Yes check the o2's and convertor
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Re: 2002 Dodge Intrepid - 3.5L Misfire
I did finally get a o2 sensor code!!
- steven kiser
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Re: 2002 Dodge Intrepid - 3.5L Misfire
yes, an intake leak will cause this problem. the pcm will try to richen the fuel and the o2 readings from bank one front and bank 2 front should be fairly close during warmup until it reaches operating temp. repair vac leak ten proceed. be wary of lean pop during acceleration. the leak could be the cause or the result of................
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