90'rs bad sensor? timing jumped? - Third Generation F-Body Message Boards

Regal105 · 03-23-2009, 10:30 PM

hi, ive had my rs stored all winter and have been starting it maybe once a week sence mid december. so i started my rs on sunday and it fired right up idled fine bla bla so i shut it off i go today to start it to move it a little closer to my shed and it wont start fuel pump cuts in it rolls for the usual ammount of time b4 starting then it just gives a little kick like it's starting and then nothing then another kick and if u keep the pedal to the floor it hits on 2 maybe 3 cylinders let off of the key and it dies it's kinda high mileage so i dont know if the timing chain jumped any clue anyone? thx

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Jono4820 · 03-24-2009, 10:25 PM

Coil wire? Cap and rotor? Easy check.....Good luck

Regal105 · 03-24-2009, 11:40 PM

id be happy if it was the coil or wire lol i dread changing the timing gears

Regal105 · 03-26-2009, 06:37 PM

the center of the rotor button is burnt soot all around it any clues as to why?

Regal105 · 03-27-2009, 08:44 PM

so i changed the following, rotor button, dist cap, ignition module, coil to dist wire and still no difference, i have no clue, ive thrown gas into the throttle body it makes no difference, and there looks to be tons of verry blue spark i need ideas!

dr.fiero · 03-28-2009, 10:29 AM

You have fuel - you have spark.
You need compression, and timing of events.

Timing chain is semi-easy to check.
Pull the cap.
Turn the engine over backwards (by hand obviously!) until the timing mark is somewhere on the scale above the 10* mark.
Put a clothes pin/hemostat/paperclip/whatever on the edge of the distributor, pointing at the trailing edge of the rotor.
Now slowly turn the engine forward until the tip of the rotor JUST starts to move.
Check the timing tab, and see how many crank degrees of rotation it took to turn before movement.

It's not a hard science, but any much more than about 6-8* means your chain has probably stretched, and MIGHT have jumped.

Regal105 · 03-28-2009, 03:33 PM

it runs again, i put all the original parts back on it after i cleaned the cap and rotor with a dremel only thing i done different was that i unhooked the battery and reconected it again it runs pretty much as good as ever, sometimes it doesn't want to idle and the service engine light is on, any ideas as to why?

dr.fiero · 03-28-2009, 04:37 PM

Quote:

Originally Posted by Regal105

the service engine light is on, any ideas as to why?

Jump ALDL A/B pins, pull codes, report back. Just guessing otherwise.

Regal105 · 03-28-2009, 06:33 PM

i give up i let it cool down started it again now it purrs like a rabid kitten, due to the exhaust or lack there of, and the engine light has went off, no black smoke *fingers are crossed*

dr.fiero · 03-28-2009, 06:43 PM

Quote:

Originally Posted by Regal105

the engine light has went off

Did you pull the codes as requested? If you haven't disconnected the battery... they're still there.

Regal105 · 03-28-2009, 07:25 PM

nope sorry i didn't , i got nothing to pull codes with i havn't even looked for the diagnostic port.

dr.fiero · 03-29-2009, 01:25 AM

A paperclip. Chunk of wire. They'll both suffice.

Stuff into the A/B pins of the ALDL. Turn on the key. Count the flashes. Ignore flash-flash/flash (code 12).