Recent Topics
Weird Electrical Issue.
by George7941
04/21/18 09:35 AM
Ever puchase movies from cable provider?
by ZZman
04/21/18 09:31 AM
Mann HU 711/51 X oil filter for Miniís $6.50 Amzn
by 1JZ_E46
04/21/18 09:30 AM
M1 Oil For My Trucks Engine
by BlueOvalFitter
04/21/18 09:30 AM
Toyota SofTex upholstery
by CincyDavid
04/21/18 09:09 AM
Castrol Dexron VI $5 QT at AA
by The_Cams
04/21/18 08:41 AM
Liqui moly engine flush
by gallydif
04/21/18 08:27 AM
Uneasy about Bosch Cartridge Filter
by tc1446
04/21/18 07:36 AM
Harvest King 0w20 Full Synthetic
by oilstudent24
04/21/18 07:22 AM
oil spec.
by ernied
04/21/18 07:03 AM
Great dog story to start your day!
by AZjeff
04/21/18 06:51 AM
BITOGers in the wild west
by Shannow
04/21/18 03:54 AM
'10 Wrangler 5,350 Miles Cam2 5w30 Synavex
by montero1
04/21/18 03:31 AM
Jack Horner Ted Talks - Dinosaurs - good fun watch
by Shannow
04/21/18 02:00 AM
PP life span in engine
by barber613
04/21/18 01:58 AM
Ford Focus parts clearout! 2000-2007
by Lolvoguy
04/21/18 01:48 AM
Bad O2 sensor?
by Spetz
04/21/18 01:13 AM
Let's talk Renault
by dishdude
04/21/18 01:05 AM
Ipad covers
by daves87rs
04/21/18 12:11 AM
Did I screw myself...
by NoNameJoe
04/20/18 10:15 PM
Newest Members
mowermon, Slashdotfx, Dilly, Amersham, Irene
64801 Registered Users
Who's Online
81 registered (aquariuscsm, ag_ghost, acmesupply, 1JZ_E46, ABursell, 12 invisible), 1611 Guests and 41 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
64801 Members
68 Forums
282059 Topics
4709062 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4695562 - 03/15/18 11:26 AM Distributor Cap and Rotor Replacement?
Emanuel Offline


Registered: 07/01/17
Posts: 181
Loc: Venezuela, South America
Does the Distributor Cap and Rotor need to be replaced? My 290k miles car has original distributor cap, rotor and wires and runs strong without any problems. Would I see any benefit changing those items even when my car is running perfectly?

Top
#4695568 - 03/15/18 11:31 AM Re: Distributor Cap and Rotor Replacement? [Re: Emanuel]
javacontour Offline


Registered: 06/26/03
Posts: 10237
Loc: Illinois
Doubtful the originals are on this car. Unless you've owned this car since it was purchased new, those items have probably been replaced.
_________________________
network down, IP packets delivered via UPS -BOFH

Top
#4695569 - 03/15/18 11:32 AM Re: Distributor Cap and Rotor Replacement? [Re: Emanuel]
Trav Offline


Registered: 11/20/06
Posts: 18226
Loc: MA, Mittelfranken.de
Yes they do, like spark plugs they erode causing a wider air gap which requires higher firing voltage. You can have a low misfire count and not even notice it until it increases to a full blown miss, the wider air gap also places additional stress on the coil.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#4695583 - 03/15/18 11:42 AM Re: Distributor Cap and Rotor Replacement? [Re: Emanuel]
JLTD Offline


Registered: 12/15/17
Posts: 367
Loc: US
Yes; when I had a vehicle with this ignition, I usually changed the plugs, cap and rotor at every 2nd spark plug change - each plug change was 30,000 miles.
_________________________
2015 4Runner SR5 1GR-FE

Top
#4695588 - 03/15/18 11:45 AM Re: Distributor Cap and Rotor Replacement? [Re: Emanuel]
mclasser Online   content


Registered: 04/13/13
Posts: 2166
Loc: The Northeast
Yep, good idea to replace them. I replaced mine at 180k and noticed a smoother idle and small MPG increase.
_________________________
2018 Hyundai Elantra VE -- 1K
2013 Honda Pilot EX-L 4WD -- 50K
2002 Honda Accord EX-L -- 210K
2002 Infiniti I35 -- 130K


Top
#4695594 - 03/15/18 11:51 AM Re: Distributor Cap and Rotor Replacement? [Re: Emanuel]
Yah-Tah-Hey Offline


Registered: 05/26/14
Posts: 3209
Loc: Columbus,Nebraska
I always replaced the cap and rotor when I replaced spark plugs. Seriously doubt you have the OEM parts. Don't expect a noticeable change if you haven't been experiencing ignition problems.

Top
#4695719 - 03/15/18 01:57 PM Re: Distributor Cap and Rotor Replacement? [Re: Emanuel]
nthach Offline


Registered: 01/02/04
Posts: 3665
Loc: California
It's a good idea to change the cap and rotor every other spark plug change. while the terminals do wear and pit due to unavoidable arcing everytime the rotor contact goes over the cap contact for each cylinder and the center contact wears down(it's a carbon nub that's spring loaded like a motor brush) you also have ionized air that has a good bit of ozone in it. If the cap's plastic weakens and cracks or if there's a carbon track on the inside of the cap, it's an ideal condition for a voltage leak.

Top
#4695741 - 03/15/18 02:25 PM Re: Distributor Cap and Rotor Replacement? [Re: Emanuel]
Snagglefoot Online   content


Registered: 12/31/17
Posts: 1275
Loc: Alberta
Take the clips off the cap and have a look at each contact and the edge of the rotor. If there are any deposits on the contacts, replace the cap and rotor. I wouldn't bother with the wires unless you feel like updating them or the engine has trouble starting.


Edited by Snagglefoot (03/15/18 02:25 PM)

Top
#4695785 - 03/15/18 03:18 PM Re: Distributor Cap and Rotor Replacement? [Re: javacontour]
Emanuel Offline


Registered: 07/01/17
Posts: 181
Loc: Venezuela, South America
Originally Posted By: javacontour
Doubtful the originals are on this car. Unless you've owned this car since it was purchased new, those items have probably been replaced.


I'm the original owner

Top
#4695791 - 03/15/18 03:21 PM Re: Distributor Cap and Rotor Replacement? [Re: Yah-Tah-Hey]
Emanuel Offline


Registered: 07/01/17
Posts: 181
Loc: Venezuela, South America
Originally Posted By: Yah-Tah-Hey
I always replaced the cap and rotor when I replaced spark plugs. Seriously doubt you have the OEM parts. Don't expect a noticeable change if you haven't been experiencing ignition problems.


My dad is the original owner, I don't think he has changed those items


Edited by Emanuel (03/15/18 03:38 PM)

Top
#4695795 - 03/15/18 03:23 PM Re: Distributor Cap and Rotor Replacement? [Re: Emanuel]
Emanuel Offline


Registered: 07/01/17
Posts: 181
Loc: Venezuela, South America
Now that I'm starting to remember the car did died some years ago for a ignition problem, I think it does have a new rotor

Top
#4695869 - 03/15/18 04:28 PM Re: Distributor Cap and Rotor Replacement? [Re: Emanuel]
Silverado12 Offline


Registered: 02/26/13
Posts: 3030
Loc: Central Virginia
FWIW I always replaced these parts at 60K miles. Never noticed a difference in how it ran, though. I wouldn't go over 100K miles.
_________________________
12 Chevy Silverado ext. cab LS, 2WD 4.3 auto
16 Challenger R/T Shaker 5.7 manual B5 blue
07 Harley Dyna Street Bob 96 c.i. 6 sp.
00 Mustang GT auto

Top
#4696006 - 03/15/18 06:59 PM Re: Distributor Cap and Rotor Replacement? [Re: Emanuel]
JeffKeryk Offline


Registered: 01/09/10
Posts: 113
Loc: Los Gatos, CA
Replace them with quality parts. I like OEM.

Top