S-10 :: 1998 Blazer AC Isn't Cooling At All
Aug 24, 2015
After replacing the lower intake manifold gasket, along with the plenum and valve cover gaskets, I've discovered my AC isn't cooling at all. During the above repair I unbolted the compressor and set it on the passenger side out of the way. Checked the low side pressure and had no pressure. Thought I might have loosened something and caused a leak. Hooked my gauges and vacuum pump up and vacuumed for about an hour pulling 29in. Hg. Turned off and after three hours the needle had barely moved. Decided I'd add some R134A until I got enough in to activate the clutch on compressor, read gauges and try to see where I was with it.
Initially I had readings of 100 on low side and only 50 on high side. I'd added about 2/3 of can of refrigerant and my clutch had activated the compressor. Turned off and checked the electrical connection to compressor which appeared okay. Honestly I didn't know what to do next. Fired up the engine again and still had the crazy reading when the compressor clutch kicked in. Actually it was doing what I think is called, "Short Cycling," on and off every five seconds or so. When the compressor was running the gauges would show fifty psi on low side and a hundred on high side. Also the sight glass on my gauges was filled with oil. I'd planned to put some dye in the system to show any leaks I might have, but with the way things were going I didn't get to it. This experience has shown me I've got a lot to learn about auto ac systems!
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When I turn the key over to start the vehicle, the clock resets to 1:00, the back latch clicks and the car kind of makes a grinding sound but not like a churn as if it wanted to start. I don't know if it is just a dying battery or if it would be something else but my car will not start at all.
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I have a problem with my 1998 Chevrolet Blazer. It won't go in reverse, but will go into gear going forward. I don't know whats wrong or what the cause is.
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My 98 blazer (130k)recently started showing code p0740 tcc circuit malfunction..
The truck runs fine (except for the water pump I just blew) this is a tranny solenoid code. but my tranny seems to be shifting ok..
Is the solenoid easy and cheap enough to replace myself? I am trying to make up my mind if its time to start thinking of trading this blazer in on something with less miles or to fix it up and keep on trucking..
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I have a 1998 chevy blazer v6 about 127024 miles. My transmission shifts hard out of first gear when i get to 4 gear and it shifts hard. When car warms up really good car shifts find out of first gear but 4th gear still shifts hard. I did change transmission fluid and new filter in it and I check fluid level and it's full.
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i have a 1998 chevy blazer 4.3 4wd v6 about 130000 miles on it. There is no check engine light on at all. Some reason it takes long time for it to get up to speed.and i can't figer out why that is i did replace spark plugs in it..
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After I fixed the original problem after about a day of driving I had a P0507 Idle speed High/Low. I turned the set screw down and lowered my rpm. After about 5min of driving the code went away on its own.
About 1 week later I am now getting the P0507 again and now it has a buddy. P0446 Evap System.
Questions what would my idle rpm be? Can the high rpm cause the EVAP code as well.
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What would cause my truck to have a long turnover start, a really rough idle, and a loss of power after idling at a stop light for about a minute?
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I am also having a problem with the air conditioning not working. When I do the self diagnostic test on the A/C the results are that it fails the cool-down test. Why the computer module isn't sending a signal to the relay? Could the A/C problem be causing the cooling fans not to come on?
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