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Chevrolet Blazer Engine and Performance Problems
173 messages, Last post on May 17, 2013 at 5:35 PM
You are in the Chevrolet Blazer Forum.- Your Hosts are Stever@Edmunds & kyfdx
What is this discussion about? Chevrolet Blazer, SUV
#169 of 173 95 blazer, rpms suge to 1800 at idle by rx7420
Apr 25, 2012 (8:39 am)
sometimes it wont start when it does start it idles fine for a bit then when u put it in drive it will be ok then the rpms will surge to 1300 and at idle around 1800 and stay that way till i shut it off i thought maybe the idle control motor was bad so i replaced it and it didnt fix it any ideas
#170 of 173 Re: high idle on 97 blazer [horsey] by rx7420
Apr 25, 2012 (8:38 pm)
Replying to: horsey (Mar 09, 2008 7:19 pm)
hey my 95 blazer is kinda havein the same problem did u ever figure it out?
#171 of 173 91 S10, Poor gas milage, stalling on deceleration by rfletcher
Sep 03, 2012 (2:47 pm)
Blazer Sport 4X4 4.3l TBI 185000 miles. No trouble codes. Code 12 only. Has a long history of stalling at high speed, rough idle and poor gas mileage. Gave up on DIY. After four professional shops and more money than I care to think about, finally found the problem, or so I thought. Last shop found, inside, the throttle body totally encrusted with carbon. One vacuum port had to be drilled out. Cleaned body and installed overhaul kit including the fuel regulator and injectors. Replaced O2 sensor for the third time. Truck ran as new for a few weeks. Fuel consumption same as when new. Was never that great. Now: does not stall at high speed but does stall on rapid deceleration. Intermittent rough idle and poor gas mileage. In desperation, purchased an ALDL to USB interface for the laptop. Running WinALDL. Data scan indicates INT set to 128 as is normal for open loop. BLM counts from 0 to 256 then starts over. Do not know what this count means. O2 does not hunt. Never changes more than .465 to .570 during warm up. Temp. was a little low so changed sensor. Now 287F. No effect. All other sensors are normal. It appears to be stuck in open loop and running very rich. I am in over my head and treading water. Does any of this mean anything to anyone? Defective ECM? Defective wiring? Thanks to anyone and everyone.#173 of 173 ignition starts but some times not all guages by usnavymiochael
May 17, 2013 (5:35 pm)
When I start it some times the brake light stays on,fuel guage does'nt work, air bags warning lights on. I was thinking maybe ignition switch. I have a 2001 I just bought with a bunch of electrical problems. Is this pron to these models? I appreciate any help I can get. Thank you all.To POST a message, please
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