misfire again

[smilecenterlab]

Hi Everyone ,
I started my car after a couple of weeks,started fine then after driving a bit it started to misfire and loosing power.Maybe it sat too long in the cold without me driving it.I decided to keep driving for a while,got on the freeway and stepped on it but could not get it to get up past 80.After driving for about 45 minutes things went back to normal.I recently put new caps,rotors and insulators.Anything else i can do to prevent this from happening again?
Thanks,
Andy

 

[gsxr]

Was there any trace of oil leakage visible when you removed the insulators?

Next step would be adding vent slots to the cap as described in the other thread, to see if that makes any difference.

Just curious, how old are the coils?

 

[Jlaa]

Hi Everyone ,
I started my car after a couple of weeks,started fine then after driving a bit it started to misfire and loosing power.Maybe it sat too long in the cold without me driving it.I decided to keep driving for a while,got on the freeway and stepped on it but could not get it to get up past 80.After driving for about 45 minutes things went back to normal.I recently put new caps,rotors and insulators.Anything else i can do to prevent this from happening again?
Thanks,
Andy

Andy, how dry is your garage? As all of us in San Francisco know, it has been raining for what - like 8 days in a row now with record levels of nearly-Noah-grade-rainfall? 🌧️⛈

Just a thought….. I haven’t driven my car in some weeks as well …. Constant never ending rain ……. (although I cross my fingers as my garage is insulated and sits above a 134K BTU boiler and is somewhat heated….)

 

[nocfn]

And just checking that your cam seals are replaced during your ownership…

 

[frall]

Was there any trace of oil leakage visible when you removed the insulators?

Next step would be adding vent slots to the cap as described in the other thread, to see if that makes any difference.

Just curious, how old are the coils?

Do you think the coils can be the reason too or only in combination with the caps/moisture and so on?

 

[gsxr]

Do you think the coils can be the reason too or only in combination with the caps/moisture and so on?

I read in one of the threads (forget where) that at least in some cases, old/failing coils MIGHT be partly at fault. If it's a high-mile car, new coils would be cheap insurance / preventive maintenance. Probably not going to help much on a low-mile car, but again, coils aren't that expensive.

My guess is that tired coils may have trouble firing properly if the caps/rotors/liquid problem is present. But, tired coils may work just fine with brand new caps/rotors/insulators that are bone dry.

 

[smilecenterlab]

car has 125000 miles.i never changed the coils so thanks for heads up.garage is not that warm but its still indoors.thanks everyone and happy new year to all.

 

[smilecenterlab]

there are 2 part numbers for the coils both are bosch.
1586503 or 1586403?

 

[frall]

you need two different coils with different numbers, that seems to me correct.

 

[gerryvz]

Correct. You need one of each coil part number. The leads are oriented in different directions -- that is the difference between the two parts.

 

[smilecenterlab]

great thanks

 

[frall]

the circumferences of the leads are different too (to prevent wrong electrical connection).