help with neon only hitting on 2 cylinders


Asked by May 15, 2011 at 09:57 AM about the 1995 Dodge Neon 4 Dr Sport Sedan

Question type: Maintenance & Repair

ok I just bought this neon they said a mechanic put a new timing belt on it it is only running
on cylinders 2&3 if you pull the plug wires off of 1&4 it doesn't change the way it runs at all it
is getting fire to 1&4 plugs already checked that  and is running very rough but after you get
it out on the road and it goes into 2 nd gear it smooths out and then back to rough in 4th  

13 Answers


check the timing i guess it skip

2 of 2 people found this helpful.

i have a 2004 dodge neon sxt 2.0 . replaced the camshaft posistion sensor and the o/2 change. i then changed the spark plugs and wires.. a little better.. then i put a can of pressurized air conditioning compressor oil in the a/c system and no more jerking or running rough.. i hope this helps you or others searching for a fix brizz

3 of 3 people found this helpful.

sounds like either bent valves or burnt valves, injectors on cylinders 1 and 4 move to 2 and 3 see if the oposing cylinders change. Or the coil pack has a crack 1 and 4 run off the same pack and 2 and 3 run off the same pack it is a strong posibility its a coil pack issue.

4 of 4 people found this helpful.

this sounds every much like a coil pack issue that i once had. get some in line spark tester and check it that way. try asking someone on they might have a better idea

2 of 2 people found this helpful.

why ask someone on when i am a certified chrysler tech and own 4 neons?

9 of 9 people found this helpful.

ok, 2004 sxt. 135,000 miles on it. i have replaced every sensor, all ignition components, fuel injectors, motor mounts(all 4), timing belt water pump and tensioner, fuel pump filter and pressure regulator, catalytic converter, o2 sensors, idle air control valve, air filter, intake gaskets. still have rough idle... still throwing p300 and 303. yes i changed the cam knock and crank sensors, rewired the battery to the starter and the ground to the transmission replaced clutch and speed sensor. you name it i have done it.... any suggestions?

4 of 4 people found this helpful.

I think the better question would be "Why did the mechanic put on a new timing belt? Was it due to be changed, or was it overdue and it broke?"

1 of 1 people found this helpful.

Matt... I changed it out at 80000 miles because i was doing motor mount... It did not break... But good question. Y did the dude that started this string have it changed...

1 of 1 people found this helpful.

If the belt was changed because it broke, it's probably why the engine isn't running right.

1 of 1 people found this helpful.


1 of 1 people found this helpful.

if if was a burnt valve wouldnt it show up on a compression test? i mean why pull the head off if you dont have to? i just put a head on one we shipped out to the machine shop. rebult the whole motor.but the car seems to have a miss fire and a rough idle. but drives like a bat out of hell and doesnt break up when under a load. if i unplug the injector wire at idel no change, i can unplug both cylinder 1&2 injectors and see no change.... compession is fine, is getting spark, the injecotrs sray out fuel, the computer is sending signal, verified by noid light. so i have fire fuel and spark.... but still have a rough idle... replaced the pcm, the plugs, wires, injectors, comprsion test was good 175 all the way across its a rebuilt head with brand new valves and a brand new cam. new rings on the pistons etc.. all freshly rebuilt... what say you now? 00 neon 2.0 stock with a k7n airfilter manual trans....

5 of 5 people found this helpful.

This always baffles me on forum comments most of you don't know crap and the other half is chasing parts to fix a undiagnosed problem,ok here's my 37 years of knowledge,first determine if the timing broke and then replaced or maintenance replaced ok if broken than the mechanic did,nt bother to do a compression check I,m doing a 03 Neon 2.0 right now symptoms are running rough And fluctuating to good idle so intermittent idle with check engine light,first cleared the light and waited for it to come back on same codes appeared Multiple misfire cylinder 4 misfire First diagnose coilpack output or for you master mechanics take off the less of your spark plug and lay it next to a bracket or something metal or stick a small screwdriver into the lead and watch for spark or if you want to get real genius take out your spark plug with the wire connected check for spark ok is it working go on to step 2 check fuel again geniuses without tools take off plugs be careful they are brittle of your fuel injector run the car if it runs that is and listen for RPM change no change in idle well self explanatory If either of those tests checkout than we're getting into a more serious problem you will now have to get some tools Step 3 compression test mine was Cylinder 1 141 #2 140 #3 87 #4 70 Whoops there's the problem 2 Cylinder are average 3 and 4 are bad ok you no longer have to spend money on useless crap Now check your timing belt and see if your marks a Line up this should tell you the problem yes your tools are now required to check for these marks however if for some reason your marks line up then during your puzzling moment of disparity your conclusion should be that you either have a burnt valve or a bent valve or believe it or not a massive amount of carbon around the stem and seat area of your valve and isn't closing far enough to get complete compression you guessed it Head removal and off to the machine shop you probably need a new head gasket anyways Moral of the story is proper diagnosis,keeps you from guessing and asking a lot of gee could that be it questions as you get a lot of useless answers

Check coil pack it shares cylinders 1&4 and2&3

Your Answer

Add photo

Related Questions

  • 95 neon running on 2 cylinders help 2 answers

    ok I just bought a 95 neon they said a mechanic replaced timing belt but car only runs on cylinders 2&3 if you pull the plug wires on 1&4 they are getting fire but does not change the way it runs i...

    1995 Dodge Neon 4 Dr Sport Sedan


    Maintenance & Repair

  • 2002 Dodge Neon Overheating 16 answers

    I have been trying to assist my aunt in fixing her 2002 Dodge Neon that has been overheating. Work that I have done so far in the order in which I have done it. Flushed Coolant System Changed Thermos...

    2002 Dodge Neon 4 Dr ES Sedan


    Maintenance & Repair

  • how do i go about setting the timing on a 1995 dodge neon that has skipped timing 9 answers

    car starts but only two cylinders are firing properly and the timing marks are off how do i fix this problem

    1995 Dodge Neon


    Maintenance & Repair

  • 2004 neon ,,only getting spark from#2 & 3 cylinders,,1#4 are no spark,, new coil pack does the same thing 8 answers

    New coil pack has only spark from # 2 & 3 cylinders, 1 & 4 are no spark from coil pack,,,How come? Electrical schematic anywhere??

    2004 Dodge Neon 4 Dr SXT Sedan


    Maintenance & Repair

  • 1995 Neon Engine Swap 2 answers

    So, I got a 1995 Dodge Neon. Very possible the engine is bad, don't ask it is a long story. I don't want to spend 2 grand rebuilding this engine. The car is torn up and worn out. So, since it is sit...

    1995 Dodge Neon


    Car Customization


Looking for a Used Neon in your area?

CarGurus has 675 nationwide Neon listings and the tools to find you a great deal.


Search Dodge Neon Questions

Dodge Neon Experts

#1 Justin Gilmore
Justin Gilmore
Reputation 1,310
#2 Matt Thibault
Matt Thibault
Reputation 950
#3 Scott Goodyear
Scott Goodyear
Reputation 820
View All

Related Models For Sale

Used Honda Civic
654 Great Deals out of 88,603 listings starting at $995
Used Ford Mustang
474 Great Deals out of 45,735 listings starting at $1,999
Used Honda Accord
812 Great Deals out of 84,287 listings starting at $1,050
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217
Used Toyota Corolla
786 Great Deals out of 73,830 listings starting at $1,995
Used Dodge Stratus
884 listings starting at $1,600
Used Dodge Avenger
111 Great Deals out of 4,762 listings starting at $2,395
Used Toyota Camry
998 Great Deals out of 90,917 listings starting at $650

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.