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Chevy Blazer Starting and Stalling Problems

326 messages,  Last post on Nov 27, 2009 at 10:50 AM

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#288 of 326 Re: 97 Chevy blazer will not start [elaney1981] by yruffin Aug 09, 2009 (1:45 pm)
Replying to: elaney1981 (Aug 07, 2009 3:38 am) Where is it located and about how much does it cost for the sensor? Replies to this message: jlflemmons (Aug 09, 2009 4:59 pm)
#289 of 326 Re: 97 Chevy blazer will not start [yruffin] by jlflemmons Aug 09, 2009 (4:59 pm)
Replying to: yruffin (Aug 09, 2009 1:45 pm) The crank sensor is at 7 o'clock position when looking at the crankshaft pulley. It has two wires going to it, and takes about 5 minutes to change. That's the good news.   The bad news is that it costs 60-70 bucks! I have seen CPS failure occur two different ways. One is just driving along and boom, engine dies. If you try and restart, no-worky, but if you turn the key to off, wait a few seconds, then try to start the car it will fire right up. The other failure mode I have seen is an engine shutdown at high RPM, and coming back online when the speed slows down, sort of like hitting a governor. The intermittent failure may or may not set a code. The high RPM failure will only set a code if it occurs three times within an operating cycle. That means you start the car and get it to occur three times before turning the car off.   I would suggest getting someone with a code reader to check for stored codes. You can spend a lot of money on sensors before you hit the right one.
#290 of 326 99 blazer stalls by marcymeza55 Sep 02, 2009 (9:38 am)
I have a 99 blazer that when I get to a stop and try and go it stalls, starts right up until I stop again. I have changed the fuel filter, sparkplugs and wires, did a diagnostic test and gas pressure, everything is fine. It has good get up and go, smooth drive until we stop and press the gas and it stalls. Any ideas? Replies to this message: jlflemmons (Sep 02, 2009 1:20 pm)
#291 of 326 Transmissiion by duntov Sep 02, 2009 (10:09 am)
That is s symptom of a bad TCC (Torque Converter Clutch) solenoid.   In plain English, the TCC solenoid locks up the torque converter in the transmission to give you better gas milage. The lock-up must occur when the engine is fully warmed up and at higher cruising speeds or stalling will occur. The TCC has a wiring connector in plain view and can be disconnected. The car can be driven with the TCC disconnected without causing any problems besides a little higher fuel consumption. Drive the car with the TCC disconected for a few days and if the stalling problem disappears, viola, the problem is located. Replies to this message: marcymeza55 (Sep 02, 2009 10:19 am)
#292 of 326 Re: Transmissiion [duntov] by marcymeza55 Sep 02, 2009 (10:19 am)
Replying to: duntov (Sep 02, 2009 10:09 am) The engin seems to stall more when gas gauge reads 1/4 or less, but fuelpump was tested and it was good. Where is the TCC wiring located?
#293 of 326 Re: 99 blazer stalls [marcymeza55] by jlflemmons Sep 02, 2009 (1:20 pm)
Replying to: marcymeza55 (Sep 02, 2009 9:38 am) Does the engine pick up at all when you step on the throttle? A "bad spot" in the throttle position sensor, or the wires to it, can cause this. If the stall doesn't occur until the vehicle starts to move, and with 1/4 tank or less, I would wonder about the fuel pickup. Tested when sitting still, the pump would show correct pressure, but when you move, the gas will move in the tank and could cause a damaged/mis-positioned fuel pickup to suck air. If you can restart the car and drive away with no problem, that wouldn't seem to be the case.   Get the computer scanned (Autozone is one that will check) and see if you have any codes. There are a couple of sensors that could cause this, but they should throw codes. Idle air control solenoid, TPS, CPS (intermittent).
#294 of 326 Re: 2000 Blazer Will Not Start [sands53042] by Boyes Sep 13, 2009 (11:49 pm)
Replying to: sands53042 (Jan 15, 2007 1:28 pm) I have a 2001 4.2l Chev Blazer bought in from Japan 12000ks[7.5mls] and have had bad bad problems with starting like it wants to start but hydraulics and splutters. It has cost me in excess of $3000 and a new starter motor in fixit charges and eventually found the sensor on crankshaft replaced seemed to cure it. Some months later it refused to start again same symptoms..tow truck to GM agent and top thingy like a distributor replaced. Eventually diagnosed that the sensor on crankshaft MUST be set by GM dealer otherwise the problem will recure. At the same time get the factory transmission upgrade. Good luck. John in Greymouth New Zealand
#295 of 326 97 blazer starting problem by jgarb Sep 15, 2009 (4:47 am)
have changed fuel pump thinking that was the problem but found out that i have no spark. checked into it a little more and have no juice going to 5 fuses in the fuse box. checked fusable links (5 of them on drivers side and one at battery) and are good. could this be ignition switch or computer?
#296 of 326 Starting issue by 00blazer1 Sep 22, 2009 (7:24 am)
hey guys, I have a 00 Blazer again with the 4.3L w/ 125k mi. Been having problems with starting it. Seems like its not getting fuel. I shoot a little cleaner into the throttle body in order to get it to start but that dosen't always work. I've checked the fuel pressure at the rail and its sitting at 65 with the key on. Its slowely geting worse as the days go on. I talked to a mechanic and he said it might be the spider injector or the regulator. I do a lot of my own work but never got into the engine itself. Anyone had this problem before and know how to fix it? The mechanic told me if its the injectors it'll run about $450. Is this something I can do in my driveway? and what it would cost? Replies to this message: elaney1981 (Sep 22, 2009 9:18 am)
#297 of 326 Re: Starting issue [00blazer1] by elaney1981 Sep 22, 2009 (9:18 am)
Replying to: 00blazer1 (Sep 22, 2009 7:24 am) I have had that problem with my 98 jimmy and it was the fuel pressure regulator, If I were you I would do the whole assembly. The job is nothing at all. basic tools. Look on this site to find instructions, it is easy trust me.

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