i have a 95 blazer with the 4.3 vortech and have replaced
the spider injector,replaced plugs and wires,i have a new dist cap and\rotor to put on
but i wanted to ask because after replacing the spider it and plugs/wires
i still have a misfire,seems like just one plug or something not hitting.
still have low power and burning rich.
any help very much appreciated.


also i changed the dist cap and it got to running worse,,couldnt change
the rotor button do to they give me the wrong one.

 

im guessing i lack info for help needed
let me know if or what it is please.


thanks rowe.

 

Have patience!! I was typing up a reply when you so insistently posted again... I can understand a bump if you posted yesterday, but not even 2 hours of waiting... Completely unnecessary.

Now, when you replaced the CPI spider, did you also replace the internal fuel lines? If not, it is quite likely that they are leaking, causing your rich condition. A leak in this area would affect the driver side cylinders, quite possibly affecting only one of them depending on the location of the leak and how it dripped from the lines down onto the lower intake.

 

ok,,,when i opened up the the plinum i noticed gas in the bottom
on the pass side,,the driverside was still dirty so i replaced the spider
not knowing possible other leaks may exist but i did find when
replacing the plugs,one of them was covered with carbon so bad
it covered the tip and electrod(the one in the middle driverside behind
the steering shaft) i did not replace the inlet gas lines.

 

When did you replace the plugs in relation to replacing the spider?

It is always advisable to replace the "nut kit" (internal fuel lines) when replacing the spider. These lines do not like to seal back up after being disturbed.

 

replaced the plugs after,,bout a week
ago i put the spider in and 2 days ago the plugs.

 

Have you pulled the plugs, especially the #3 plug, again to see if they are wet or beginning to carbon foul again. 2 days is really not enough time, but...

Also, it is possible that buildup on the cap/rotor are contributing.

 

i havent yet and dont favor it,,,lol.
hard to get to,,,i broke the old one getting it out.
i will pull that one and see,also like i said in earlier
post,it started running worse when i put the new cap on.
doesnt make since to me,,pretty sure i got all wires bac on in
the proper place. may help to know the firing order on the
cap and which cylinders are 1,2,3,4,5,6.


thanks alot for your help swartlkk,i used to mod at several testing sites
and know it takes alot of reading research and patience
to help people,i appreciate it very much and can tell you are
good at what you are doing.

thanks,,,,,rowe.[sm=admin.gif][sm=hail.gif]

 

Firing order is 6-1-2-3-4-5.

If you have the cap with horizontal wire connections, then your cap will be Coil, 6, 4, 2, 3, 1, 5 moving counter clockwise from the coil tower while looking at the top of the cap as installed. The 4 terminal side will point to the passenger side. The driver side will have cylinder #3 in the front, #1 in the middle, and #5 in the back.

For the vertical tower model, just follow the proper firing order once you identify which tower is #1. This should be marked prior to removing the cap so you have a point of reference.

If your misfire problems just started after you replaced the cap, I would wonder if the cap was not the problem.

 

well before i started any repairs the truck was running
very bad and smelled of raw gas and runng very rich
then i put the spider and it ran noticebly better but sounded
like one misfire and still low power burning rich,then i put the new cap
and it starts harder an runs a tad rougher and wants to stall some.