Re: P0303 cylinder #3 misfire
I just talked to the dealer who said the heat shield had been put on
the intake to prevent overheating injector #3. I guess it rules that one out. I'll try looking at the injector this weekend. I'll wait on checking the coil since it would most likely affect 2 cylinders, although I'll keep it in the back of my head to not rule it out completely. Thanks everyone. On Jan 9, 10:07 pm, "Carl" <carlsai...@hotmailREMOVE.com> wrote: > Les, > > Thanks for the follow up. > > Carl > > "Les" <wiedr...@twcny.rr.com> wrote in messagenews:45a45c4e$0$8920$4c368faf@roadrunner.co m... > > > Hi all, here is an update on my 2001 TJ from a previous reply in this > > thread. After replacing the broken bridge and reassembling the rocker, a > > test drive showed some improvement but the Jeep threw the P0302 engine > > code again. After several days of digging into possibilities and a few > > calls to Chrysler, the guys finally dug out the problem. The cam had a bad > > lobe on one of the number two valves. I now have a pretty much rebuilt top > > end, new lifters, cam, rockers, timing chain and gears, etc.. They showed > > me the old cam and, while the Chrysler tech wouldn't admit a bad heat > > treat to begin with, he did say that he has seen a "few" but they are not > > common to have go bad. The TJ came home today, runs great, nice and > > quiet, smooth at idle and driving speeds. I'm just over $700 lighter in > > the wallet but I should be able to run this engine til I decide I need a > > newer Jeep. Just wanted to let the group know the update on my problem > > about my misfire. > > Les > > > "01XJ" <adam.tsacouman...@gmail.com> wrote in message > >news:1167779855.090317.153570@v33g2000cwv.googleg roups.com... > >>I just started experiencing a rough idle on my 2001 Cherokee (78k > >> miles). My engine light went on a little after that with the P0303 > >> code. I just replaced the spark plugs, but that didn't help anything. > >> I was > >> thinking about changing the ignition coil or fuel injector. One other > >> possibility I was > >> thinking was checking the cylinder compression (maybe a gasket leak?). > >> Anyone have any suggestions? |
Re: P0303 cylinder #3 misfire
I just talked to the dealer who said the heat shield had been put on
the intake to prevent overheating injector #3. I guess it rules that one out. I'll try looking at the injector this weekend. I'll wait on checking the coil since it would most likely affect 2 cylinders, although I'll keep it in the back of my head to not rule it out completely. Thanks everyone. On Jan 9, 10:07 pm, "Carl" <carlsai...@hotmailREMOVE.com> wrote: > Les, > > Thanks for the follow up. > > Carl > > "Les" <wiedr...@twcny.rr.com> wrote in messagenews:45a45c4e$0$8920$4c368faf@roadrunner.co m... > > > Hi all, here is an update on my 2001 TJ from a previous reply in this > > thread. After replacing the broken bridge and reassembling the rocker, a > > test drive showed some improvement but the Jeep threw the P0302 engine > > code again. After several days of digging into possibilities and a few > > calls to Chrysler, the guys finally dug out the problem. The cam had a bad > > lobe on one of the number two valves. I now have a pretty much rebuilt top > > end, new lifters, cam, rockers, timing chain and gears, etc.. They showed > > me the old cam and, while the Chrysler tech wouldn't admit a bad heat > > treat to begin with, he did say that he has seen a "few" but they are not > > common to have go bad. The TJ came home today, runs great, nice and > > quiet, smooth at idle and driving speeds. I'm just over $700 lighter in > > the wallet but I should be able to run this engine til I decide I need a > > newer Jeep. Just wanted to let the group know the update on my problem > > about my misfire. > > Les > > > "01XJ" <adam.tsacouman...@gmail.com> wrote in message > >news:1167779855.090317.153570@v33g2000cwv.googleg roups.com... > >>I just started experiencing a rough idle on my 2001 Cherokee (78k > >> miles). My engine light went on a little after that with the P0303 > >> code. I just replaced the spark plugs, but that didn't help anything. > >> I was > >> thinking about changing the ignition coil or fuel injector. One other > >> possibility I was > >> thinking was checking the cylinder compression (maybe a gasket leak?). > >> Anyone have any suggestions? |
Re: P0303 cylinder #3 misfire
I just talked to the dealer who said the heat shield had been put on
the intake to prevent overheating injector #3. I guess it rules that one out. I'll try looking at the injector this weekend. I'll wait on checking the coil since it would most likely affect 2 cylinders, although I'll keep it in the back of my head to not rule it out completely. Thanks everyone. On Jan 9, 10:07 pm, "Carl" <carlsai...@hotmailREMOVE.com> wrote: > Les, > > Thanks for the follow up. > > Carl > > "Les" <wiedr...@twcny.rr.com> wrote in messagenews:45a45c4e$0$8920$4c368faf@roadrunner.co m... > > > Hi all, here is an update on my 2001 TJ from a previous reply in this > > thread. After replacing the broken bridge and reassembling the rocker, a > > test drive showed some improvement but the Jeep threw the P0302 engine > > code again. After several days of digging into possibilities and a few > > calls to Chrysler, the guys finally dug out the problem. The cam had a bad > > lobe on one of the number two valves. I now have a pretty much rebuilt top > > end, new lifters, cam, rockers, timing chain and gears, etc.. They showed > > me the old cam and, while the Chrysler tech wouldn't admit a bad heat > > treat to begin with, he did say that he has seen a "few" but they are not > > common to have go bad. The TJ came home today, runs great, nice and > > quiet, smooth at idle and driving speeds. I'm just over $700 lighter in > > the wallet but I should be able to run this engine til I decide I need a > > newer Jeep. Just wanted to let the group know the update on my problem > > about my misfire. > > Les > > > "01XJ" <adam.tsacouman...@gmail.com> wrote in message > >news:1167779855.090317.153570@v33g2000cwv.googleg roups.com... > >>I just started experiencing a rough idle on my 2001 Cherokee (78k > >> miles). My engine light went on a little after that with the P0303 > >> code. I just replaced the spark plugs, but that didn't help anything. > >> I was > >> thinking about changing the ignition coil or fuel injector. One other > >> possibility I was > >> thinking was checking the cylinder compression (maybe a gasket leak?). > >> Anyone have any suggestions? |
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