stupid blazer......

**RedHot99T/A** · 02-27-2011, 01:03 PM

So I have a 91 blazer as my dd,and its running like crap.....I have done plugs/wires/cap/rotor/idle air control valve and a coil and also clean all the injectors,idles good until its warm then once I put it into drive it misfires and acts like its eaither drowning/choking and wants to stall out,which it has done a few weeks back numerous times,I'm at a loss and need help...is a 4.3 pos

**thearborbarber** · 02-27-2011, 01:14 PM

Which 4.3? Does it have Throttle Body Injection or Central Port Injection?

**RedHot99T/A** · 02-27-2011, 01:24 PM

Throttle body,2 fuel injectors in the tb....

**importhater81** · 02-27-2011, 01:49 PM

Check the distributor itself. The dist shaft itself tends to wear out,causing the symptoms you're having. If this is the case replace the distributor as an assembly...pick-up coil,module,whole nine yards.

**RedHot99T/A** · 02-27-2011, 01:54 PM

Really? Great wasn't plannin on spending that muchbif it is bad

**importhater81** · 02-27-2011, 02:01 PM

Originally Posted by RedHot99T/A

Really? Great wasn't plannin on spending that muchbif it is bad

Distributors aren't that much money, esp remans. Not saying that is even your problem,just something to look at.

They tend to wear out and get loose,which causes the pick-up coil to get thrown off. The way to check is to remove the dist and look for play between the gear drive and the housing itself...if there is,chances are that's your problem.

**0rion** · 02-27-2011, 02:02 PM

Originally Posted by importhater81

Check the distributor itself. The dist shaft itself tends to wear out,causing the symptoms you're having. If this is the case replace the distributor as an assembly...pick-up coil,module,whole nine yards.

this would be a good place to start......do you have any codes at all? Usually when that distributor gear wears you'll start throwing some timing related codes.

**RedHot99T/A** · 02-27-2011, 02:06 PM

Check engine light was on at 1 time but replaced a few things and it won't come back onj....

**blackSS01** · 02-27-2011, 02:08 PM

Originally Posted by RedHot99T/A

Check engine light was on at 1 time but replaced a few things and it won't come back onj....

Code should still be stored. Go to Autozone and they will read it for free.

**RedHot99T/A** · 02-27-2011, 02:09 PM

Even an obd1?

**blackSS01** · 02-27-2011, 02:12 PM

Originally Posted by RedHot99T/A

Even an obd1?

They will stick in this metal prong type shit and it will flash the engine light a certain amount of times. They then look it up and it should tell you whats going on. Thats how my Corsica works

**0rion** · 02-27-2011, 02:12 PM

I just noticed you're obd1.....you can jump that connector with a paperclip and get your codes.

OBD1 pinout

jump the A-B pin and there will be a series of flashes by the SES light (first number) pause series of flashes(second number).

**blackSS01** · 02-27-2011, 02:16 PM

Originally Posted by 0rion

I just noticed you're obd1.....you can jump that connector with a paperclip and get your codes.

OBD1 pinout

jump the A-B pin and there will be a series of flashes by the SES light (first number) pause series of flashes(second number).

Who are you? Fucking MacGyver?

I'll just stick paper clip into slot 1 and 5 and now I'm good to go. Some tape and bubble gum will fix your issue if put here

**0rion** · 02-27-2011, 04:06 PM

Originally Posted by blackSS01

Who are you? Fucking MacGyver?

I'll just stick paper clip into slot 1 and 5 and now I'm good to go. Some tape and bubble gum will fix your issue if put here

nope....that's common knowledge really. I'm surprised being car guys that you guys have never heard of doing that.

**Z28Thunder** · 02-27-2011, 04:13 PM

I noticed all that you replaced or cleaned. Did you do the fuel filter as well?

**RedHot99T/A** · 02-27-2011, 04:26 PM

I did not I work at advance and we didn't have 1 instock so I ordered 1,only reason I replcaed what I did was for tune up/they were broken....

**blackSS01** · 02-27-2011, 04:42 PM

Originally Posted by 0rion

nope....that's common knowledge really. I'm surprised being car guys that you guys have never heard of doing that.

I haven't had too many obd 1 cars.

**SeVeReDiStOrTiOn** · 02-27-2011, 04:49 PM

Along with the distributor it could be your o2 sensor. The o2 is bypassed in open loop so that could explain why it doesn't do it when cold.

**0rion** · 02-27-2011, 06:26 PM

Originally Posted by SeVeReDiStOrTiOn

Along with the distributor it could be your o2 sensor. The o2 is bypassed in open loop so that could explain why it doesn't do it when cold.

yep....or a faulty coolant temps sensor will do this on obd2 cars....not completely sure about obd1 but I would imagine it would. Step 1 should be pulling the codes and see what it says.