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SUVs Chevrolet Blazer Chevy Blazer Starting and Stalling Problems
326 messages, Last post on Nov 27, 2009 at 10:50 AM
You are in the Chevrolet Blazer Forum. Your Hosts are steve_ & tidester
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Replying to: jlflemmons (Oct 06, 2009 9:11 am) |
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I have a 1992 chevy pickup with a 4.3 v6. When i crank it i have to throttle the gas to keep it running. If i unplug the map sensor it will run at a high idle. I have tested the map sensor and it tests fine, i have even replaced it but that didn't work. I have replaced the ECM, IAC,TPS,EGR valve, fuel filter. I have cleaned the throttle body. I have checked the vacuum lines, distributor, wires and plugs. The vacuum selinoid works fine and the spark control module works fine.I had a diagnostic tool run on it but no codes. I have ohmed out the wiring and found no breaks. Can anyone give me some ideas on what this problem can be? Please help!!!
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| I have a 95 chevy blazer automatic with a 4.3 vortex. When I drive it the RPMs jump around and then it stalls out if I hit the brakes. Does anyone have any Ideas of what may be wrong? | |
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Replying to: zedd3111 (Oct 24, 2009 3:09 pm)
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Replying to: blondie16 (Aug 10, 2008 6:00 am) |
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Replying to: marblaze (Oct 28, 2009 5:23 pm) tidester, host SUVs and Smart Shopper |
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Our 97 Blazer has an intermittent starting problem. The car has a new fuel pump (60PSI) and filter, good plugs, wires and spark when the problem occurs. I have pulled the plugs and found them wet and you can smell fuel when the problem occurs. When the car sits for longer than day and especially when its wet, it won't start. It has spark and fuel it seems as if the timing maybe off and not firing at the proper time. There never has been any back fire to indicate bad timing, it doesn't even try to fire. I have cleaned the plugs when they are wet and put them back in and still no start. The last time this happened I tried cranking for long periods and short periods. In doing so I found that if I did not turn the key all the way to off it would hit on the next attempt. Doing this (going from start to run and back to start) the car did finally start, but the engine raced at about 2500 rpm. I shut it off and started it again a few times and it finally came back to a normal idle. Anyone ever have this type of problem and knows where to look?
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my 99 blazer has a starting problem when cold , the sevice engine soon light is on i had it checked at the auto parts store scanner read( fuel lean ) anyone know what this means??????????????????
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Replying to: nbaker2005 (Nov 03, 2009 6:13 am) |
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Replying to: marblaze (Nov 03, 2009 8:49 am) |
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