idle surge up and down especially with headlights on

What is your question?

battery checks 12.45v before engine start...after engine start battery checks 14.19v... if you rev motor up just alittle battery voltage starts dropping slowly down to 12.50v....when engine is warm and with headlights on idle surges up and down if headlights turned off surge stops. please help

Killer 44 in Burleson TX

·

Oct 19, 2009

·

1 Reply

Popular Answer
Oakmanon Oct 23, 2009

Your voltage readings indicate that the alternator is not working correctly on your 1990 Honda CRX. A low voltage condition when the headlights are turned on could be the cause of your idle surge. Please check connections and proper inputs to your alternator before assuming it is faulty.

Reply

Join the conversation!

Sign in or create an account to respond

Reply

Similar Questions

See more 1990 Honda CRX Questions

What are the best Honda repair shops?

RepairPal Certified shops can diagnose and repair your 1990 Honda CRX. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
30 Certified Locations
Shop Image

Tuffy Tire & Auto Service Center - Grandview

4.7
(85)
2.39 mi
1524 W 5th Ave
Columbus, OH
Closed
Opens 8:00 AM Sat
Call
Shop Image

Excite Auto Repair & Towing

4.4
(15)
5.94 mi
3430 Westerville Road
Columbus, OH
Closed
Opens 9:00 AM Mon
Call
Shop Image

All In Auto Service

4.9
(25)
6.56 mi
5200 Fisher Road
Columbus, OH
Closed
Opens 8:00 AM Mon
Call
Shop Image

Tuffy Tire & Auto Service - Grove City

4.4
(520)
6.67 mi
2131 Stringtown Rd
Grove City, OH
Closed
Opens 8:00 AM Sat
Call
Shop Image

Blackstone Complete Auto Care

4.2
(36)
6.77 mi
4800 Sinclair Road
Columbus, OH
Closed
Opens 9:00 AM Sat
Call
Shop Image

Boyd's Tire & Service - Columbus

4.7
(183)
7.23 mi
5263 Godown Rd
Columbus, OH
Closed
Opens 8:00 AM Sat
Call
See All 30 Locations
30 Certified Locations
Shop Image

Tuffy Tire & Auto Service Center - Grandview

4.7
(85)
2.39 mi
1524 W 5th Ave
Columbus, OH
Closed
Opens 8:00 AM Sat
Call
Shop Image

Excite Auto Repair & Towing

4.4
(15)
5.94 mi
3430 Westerville Road
Columbus, OH
Closed
Opens 9:00 AM Mon
Call
Shop Image

All In Auto Service

4.9
(25)
6.56 mi
5200 Fisher Road
Columbus, OH
Closed
Opens 8:00 AM Mon
Call
See All 30 Locations