ok here iswhat happend whent ot town wensday and the car ran fine parked at best buy for a couple hours where we all hang out wensday nights. left and the car didnt feel right got out of town on the hwy put it in 6th gear and the hole car whould shake under accelartetion. got home and checked enigen light with auto tap and my sort term Ltrems was like -39. so i unpluged my mass air translator and hooked it up regular and they whent to -1 and 2 back and forth idealing so i took car around blick and it still whould have a miss or what not but it wasnt all time it happen here and there. so i thought a fouled plugs since it ran so rich on the -39 sort term ltrems. next day i pulled plugs and changed them all. on cyl 1 it was black as hell. so i was like that my prob got done whent around block again about 5 6miles and it acted same way missing here and there down low in rpms and alittle in the high rpms rang but not all time. came home pulled plug out number 1cyl and it was black as hell again with only 6 miles on it.

well today i put new plug wires, new thortal body sensor, cleaned the mass air and replaced the injector on number 1 with anouther and swapt number 3 coil pack with number 1 to see if it change. but a clean plug back in it and drove around a little bit and pulled plug again and it was black as hell once again.

I NEED HELP PLEASE any ideas what to do next.

here is what i have done so far

1.changed plugs
2. did away with my mass air translator
3.new plug wires
4.swaped injector on number 1cyl
5. swaped number 1 and 3 coil packs.
6. new TBS sensor
7.cleaned maf sensor

all this and still got the miss here and there and number one plug still turing black.

here is a pic of the plugs

frist plug is one that i pulled out when prob started 2nd plug is one with 6 miles on it 3rd plug is on after coil swap and injector swap.

http://webpages.charter.net/silverz98/plugs.JPG


ok just did a compresion test on driver side 1,3,5,7 number one being the cyl giveing me probs. please TELL ME WHAT YOU GUYS THINK AND IDEAS PLEASE

test

1. dry was 115 did with a little oil in cyl 1st with oil 160 2nd try was 130
3. dry 200
5. dry 205
7. dry 200

only one i added oil too is 1 cause that the one that giveing my probs.

again please let me know WHAT YOU GUYS THINK

 

What valve springs are you running with that cam? I would check them for that cylinder and/or do a compression test on it.

 

thanks and keep the replys comming guys


im running the cran duals. been on the car since the heads whent one a year and half ago. they got about 26,000 miles on them. got a new set of patriot duels here to go in but didnt think i needed them jsut yet. the valve tarain isnt no noser or anything. Im going to try and do a comprasion check tomm on the driver side see what the numbers are.


PLEASE KEEP ALL IDEA COMEING guys thanks
Eddie

 

To The Top

 

ok just did a compresion test on driver side 1,3,5,7 number one being the cyl giveing me probs. please TELL ME WHAT YOU GUYS THINK AND IDEAS PLEASE

test- car has 153,xxx miles on her

1. dry was 115 did with a little oil in cyl 1st with oil 160 2nd try was 130
3. dry 200
5. dry 205
7. dry 200

only one i added oil too is 1 cause that the one that giveing my probs.

again please let me know WHAT YOU GUYS THINK


will valve springs cause the compresion drop?

 

A broken valve spring or valve problem can cause low compression, but generally low compression caused by a valve problem does not improve by adding oil to the cylinder. Low compression problems that improve with adding oil are usually a problem with a piston rings, piston, or ring land. I would still check the valve springs as that only involves pulling the valve cover and inspecting them especially since the problem seemed to occur suddenly. Could possibly be a rocker arm or push rod problem too.

 

thanks 2xLS1 for being help full. your only one that has said any thing to help. please keep an eye on here.

i got a brand new set of springs here. so i guess next step is going to be to pull old ones off number one and put new ones in to see what happens and recheck compresion. will post up them results


whould a broken spring make the valvetrain noiseer ? cause it sounds same as before? just wonfering if a broken spring chould still be quit?

 

keeping tabs on this..im having a similar issue...havent done a compression test though...

 

Just pull the rockers off and give the springs a good visual inspection first. Lay a straight edge across all the valve tips and make sure they are all at the same height with the rockers off.

 

update is i got one broken valve spring on number one all my valves on the top are mushroming out and 2 of them are bad off. like the one in the pics in the link let me know what you guys think

http://webpages.charter.net/silverz98/spring%201.JPG
http://webpages.charter.net/silverz98/spring%202.JPG

 

Looks like you are going to be pulling your heads and sending them back to PP. I would contact Gunnar first thing tomorrow.

 

trust me man i plan on calling him frist thing. and the car is all most all apart now. been working on it all day

 

Looks like another bad set of valves Eddie If Patriot doesn't fix them up shoot me a IM & I'll get them here & put PRC parts in it.

 

How old are these heads? How many miles on the springs? I thought PP had started using Manley or Ferrea valves recently.

 

heads will be 2 years old in november. about 22,xxx on springs. there crane dual springs. i got my heads before they came out with there own gold spring. wish i had the good valves. then i whouldnt be haveing ot pull the heads for all new valves

 

Eddie I found a set of stock heads you can run while those are getting fixed, call me!