ABS light, brake light and battery light on

DAWN LAYMAN

MEMBER
1999 ISUZU RODEO
6 CYL
AUTOMATIC
200 MILES

Cold start. Car was driven for about four minutes with the AC on high this morning. Heard weird noise coming from engine and turned off radio and AC. Noise stopped when AC turned off. ABS light came on so I started tapping my brakes to make sure I was not going to shut off. About that time, the brake light and battery light started flickering, coming on and off. Ticking noise when lights were coming on and off. Stopped at a red light and car started idling high 2000 and when went to accelerate, the car was barely moving. Finally got it going to an acceptable rate. Turned car off and let it sit for four hours until help arrived and everything seemed fine when they restarted it. No lights, nothing. Drove it one hundred feet and had a little jerk in the movement of the vehicle and lost acceleration again with all lights back on. Any suggestions?

6 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,536 POSTS

Hello,

It sounds like it could be the AC compressor but lets start by checking the alternator which can cause the problem you have described.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

If it fails this guide will help walk you through replacement. Please run this test and get back to us we are interested to see what it is.

https://www.2carpros.com/articles/how-to-replace-an-alternator

Please run down these guides and report back.

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Friday, July 28th, 2017 AT 11:28 AM

TSGTGENE

MEMBER
1 POST

Thanks for this post I had this problem and had to replace the alternator cost me 143.00 all fixed!

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Monday, April 29th, 2019 AT 6:20 PM

JMANG525

MEMBER
1 POST
1999 ISUZU RODEO
6 CYL
2WD
AUTOMATIC
180,000 MILES

Engine is racing most the time. Must hold the brake down on drive instead of stopping in N at lights because its racing too much. Alternator lights shows HOT engine heats up and cuts off. Radiator full not over heated but engine is.

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Monday, April 29th, 2019 AT 6:21 PM (Merged)

KHLOW2008

MECHANIC
41,814 POSTS

Hi jmang525,

If the radiator is not overheating, then it could be a faulty thermostat.

The engine racing at idling indicates a fault with the idling system and it could be vacumn laekages or a faulty Idle Air Control valve.

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Monday, April 29th, 2019 AT 6:21 PM (Merged)

DAVIDWSEMIEN

MEMBER
1 POST
1997 ISUZU RODEO

1997 Isuzu Rodeo Question Manual

Recently my rodeo brake and battery light came on so I got my alternator tested and it ended up being bad. I replaced my alternator and purchased a new battery. After installing everything my car starts up with no problem now but the brake and battery light is still on. I am really at a lost and do not know what steps I need to take next in order to solve this problem. Thanks