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Chevrolet Blazer has no power and engine bogs down

10 messages,  Last post on Sep 30, 2009 at 6:13 PM

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#1 of 10 2000 blazer has no power. engine bogs down by dprovin Jun 12, 2008 (6:18 pm)
In the morning I'll drive the car and it will be fine but wheni park it and come back to it later for lunch i have no power at all. The engine bogs down when first driving. I'll have it floored for a little bit then out of nowhere i get power. i have changed all the plugs, wires, distributor, cap, fuel filter and pump.. I'm out of idea's. It also has a rough idle if that has anything to do with it. People have said it may be a clogged cat converter? any ideas? Thankss Replies to this message: captferd (Jun 28, 2008 3:25 am) dprovin (Jun 28, 2008 3:54 am) silversmoke (Jul 30, 2008 10:49 pm) 402driver (Sep 30, 2009 6:13 pm)
#2 of 10 Re: 2000 blazer has no power. engine bogs down [dprovin] by captferd Jun 28, 2008 (3:25 am)
Replying to: dprovin (Jun 12, 2008 6:18 pm) 2 things to check. First see what code it has stored. It will be either PO100 thru PO104 (Mass Air Flow) code. Or PO300 (Random/Multiple Cylinder Misfire) code. Both of these problems have symptoms you've described. The first (Mass Air Flow) is located on the air breather intake (looks like a honey Comb). If not that code then your problem is most likely the cheap plastic distributor that GM installed for that year. Take off that expensive cap and see if the shaft jiggles. It is better to remove the distributor to inspect it. AutoZone sells a lifetime warranted Distributor for about $90. Replies to this message: dprovin (Jun 28, 2008 3:54 am)
#3 of 10 Re: 2000 blazer has no power. engine bogs down [captferd] by dprovin Jun 28, 2008 (3:54 am)
Replying to: captferd (Jun 28, 2008 3:25 am) It has a lean code that comes up with the random misfire.. i have already replaced the distributor and there has been no change.. they attached a fuel pressure gauge on it thinking it might be the fuel pump that they put in. not sure what else it could be unless its the injector which if i remember right it very pricey for the vortec engine. not sure what else to do...
#4 of 10 by captferd Jun 29, 2008 (8:32 am)
The description you give is an identical problem that I had at one time. I did all the things your describing everything from the tune up to the injector s. I had this problem for almost a year before it set off the mass air flow code. Once I replaced that all was fine. The distributor happened after and had almost the same symptoms. Im not sure that you can check it but the MAF sensor is were my finger would be pointing towards next. The injectors would cause more of a constant problem than an intermitant one. Hope I've helped.
#5 of 10 Re: 2000 blazer has no power. engine bogs down [dprovin] by silversmoke Jul 30, 2008 (10:49 pm)
Replying to: dprovin (Jun 12, 2008 6:18 pm) Could possibly be a converter problem. The problem that most Blazers have is a malfunction ignition switch. Take it to a good local mechanic (not a dealer) and see if this is one problem.
#6 of 10 2000 Chevrolet Blazer Bogs down by mmstei2 Sep 03, 2008 (7:18 pm)
My Blazer bogs down when you hit the gas and has trouble starting. We have replaced the MAF sensor, plugs, rotor, cap, plug wires, and fuel filter. The fuel pressure is at 50psi when idling and 64 wot when driving. Can we have pressure without flow? Initially the code was p0171. Now that we cleared it it hasn't come back on. Pulled O2 sensor to relieve back pressure and there was no change. Cleaned connections on battery. On scanner TPS checks good( 0-100%). ABS coming on at brake, could that have anything to do with it( no light)?
#7 of 10 2000 blazer distribitor by silbs Dec 06, 2008 (3:14 pm)
The car was backfiring and the mechanic said the distr. needed adjusting but that it was not adjustable. He made things work by "grinding" something. The car now runs fine, but am I in for trouble in the future because of this?
#8 of 10 no power at all... by jadoty Jan 27, 2009 (7:34 am)
ok so the other day i had to make a two hour drive in relitivily cold weather. so i started my blazer 15 min before i left, and i noticed that the service engine soon light was flashing. so i popped the hood to check all my fluids and what not, everything was ok. the light shut off and then i left. i was driving down the road and my brack light turned on. then shut off.....about 30 min later i went to pass someone and it hesitated to accelerate, then about another half hour later it stalled on me while i was driving. i pulled into the gas station, and re started it, and it started fine. so then i continued. everything was fine until later on in the day. i the blazer sat for about 5 hours after the first set of stuff.....i was going to park in the parking spot, and it just died. i lost all my power, and i noticed that i had smoke coming from the right side of the hood. so i popped the hood and look for the source and i couldn't see anything. then i had someone come to help me get it in the parking spot and he wanted to try to jump me, and well when we tried that i almost killed his car. i drew so much power that i almost stopped his engine....originonally i was thinking O2 sensor due to the light the slow acceleration, but i still had good gas millage. so i am just a little confuse....and i do know how to jump a car.... Replies to this message: jlflemmons (Jan 27, 2009 7:27 pm)
#9 of 10 Re: no power at all... [jadoty] by jlflemmons Jan 27, 2009 (7:27 pm)
Replying to: jadoty (Jan 27, 2009 7:34 am) Have your battery checked. If it shorted out, it will pull enough current to overload (and possibly damage) the alternator and cause enough drag to kill the engine. It won't jump start either. The engine of the other car will slow down, and the jumper cables will heat up. Even running, the load of the shorted battery will cause a low voltage condition causing all sorts of issues for the computer.   I have seen two different cars just recently where batteries less than 90 days old have shorted out. Somebody (there are only a couple of companies that make batteries, they just change the labels for the different brands) is making junk batteries. I use Delco and have had no problems, Interstate seems to be okay. The bad ones were both from AutoZone.
#10 of 10 Re: 2000 blazer has no power. engine bogs down [dprovin] by 402driver Sep 30, 2009 (6:13 pm)
Replying to: dprovin (Jun 12, 2008 6:18 pm) Check for vacuum leaks downstream of the MAF. I had an issue with deteriorated vacuum lines allowing excess air into the intake manifold causing an intermittent misfire due to an excessively lean mixture. Was driving me NUTS.

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