howto: ignition coil remove and install

figgie · #1 (**permalink**) 07-22-05, 12:35 PM

Anyone know how to get the igntion coil out of the car? basic steps to get back there would be greatly appreciated.

big420dog · #2 (**permalink**) 07-22-05, 02:27 PM

To Remove:

Remove the wiper arms.
Remove the left and the right side air inlet grilles.

Remove the wiper motor.

Remove the power brake booster vacuum connection from intake plenum.

Remove the spark plug wiring harness from ignition coil.

Remove the electrical connection from ignition coil.

Remove the bolts from the ignition coil.

Remove the ignition coil.

And then to Re-Install:

Install the ignition coil.

Install the bolts to ignition coil. NOTE: Refer to Fastener Notice in Cautions and Notices. Tighten Tighten the ignition coil bolts to 8 N.m (71 lb in) .

Install the electrical connection to ignition coil.

Install the spark plug wiring harness to ignition coil.

Install the power brake booster vacuum connection to intake plenum. Tighten Tighten the power brake booster vacuum connection until snug. Counter hold fitting while tightening.

Install the wiper motor.

Install the left and the right side air inlet grilles.

Install the wiper arms.

See attached pictures.....

I hope this helps. Nothing like removing things you can't see!! Gotta love the Catera!!!!!!!

figgie · #3 (**permalink**) 07-23-05, 04:29 PM

this helps out tremendously

figgie · #4 (**permalink**) 08-06-05, 03:17 AM

big420dog

absolutly appreciate the help. Was able to source an ignition block and followed your directions (save for taking off the windshield wiper motor) and did the R&R.

Car is working like normally again. See how long this last before it breaks once again.

cadillac97 · #5 (**permalink**) 12-30-05, 09:00 AM

Is there any method to gain access to ignition coil without taking off the wipers. I can't remove wiper arms, I think they are rusted and they are stuck..

bengsxr · #6 (**permalink**) 12-30-05, 02:52 PM

well your going to have to I would buy some bolt loosener spray it in there let it sit for awhile and keep trying. the arm has splines so you will have to pull it straight off.

cadillac97 · #7 (**permalink**) 12-31-05, 04:05 PM

Well today i manage to remove the ignition coil, had to remove the entire wiper assembly with wipers installed, I damaged one part already some kind of vacumm booster, but I manage to repair it..
Is there any way to measure the resistance of those coils wwant to see if the coil 1 shows dead .. ?

figgie · #8 (**permalink**) 01-15-06, 06:07 PM

bumping this for two reason

need the ECU pin out of the ignition coils as i need to test this. The car works fine when cold but then misfires which leads me to believe that it is a a problem with the electrical.

and to get cadillac 97 question answered.

todderdodder1 · #9 (**permalink**) 06-08-09, 02:12 AM

it would be quite helpful if someone knew a way to test this as i also would like to check mine before dumping more money into this endless pit.. i had a bad misfire about a week ago and replaces the spark plug wires which fixed it untill yesterday, so now im sure that its the coil pack..

neiljmoore · #10 (**permalink**) 08-26-09, 01:04 PM

You can test the coil with an ohmeter . But I checked mine by hooking it up to the battery while it was out of the car. there are 4 wires feeding it. one hot and 3 grounds that go to the control module . If you hook em up one at a time you can check for spark on the secondary by grounding them. Careful .... just dont get a shock .