Damp and cold this morning. No hiccups or stuttering on acceleration. Seems I'm good to go. Thanks Swartlkk for the help. Truck accelerates nice a smooth now.

Next project is the heater core before it gets too cold.

 

Glad to help! Also glad I did not steer you in the wrong direction! Happy motoring!!

 

It must just be a Blazer thing, as I had just bought mine 2 months ago and it had done this the whole time, bucking and missing, then it straightens up for a while then goes back to doing it again. It threw a MAF code and it cannot be that becasue that has been replaced twice, replace total fuel system. The real problem is here that you cannot get someone to diagnose the real problem and you keep replacing parts after parts. I am so disgusted with this thing, I have an ear broke off my distributer and I am think that this may be the problem. Mine seems to do it when itrs damp as well(worse that is) sometimes it does not do it at all. Goodlooking trucks just a pain to diagnose problems with it.

 

The ear broke off the distributor is not good. I would replace that as soon as you can. This is allowing excess moisture into the cap which is not good. Moisture will cause spark scatter which will cause a misfire condition. The fact that it does it when it is wet outside further reinforces this point.

As far as the MAF not being the culprit, it still may be. The sensor is not the only thing in that loop. Problems with the wiring affecting the power, ground, and return to/from the sensor can trigger a code.

I am not sure what or whom the comment about not being able to get anyone to diagnose the real problem is directed at. You are responsible for diagnosing the problem. We can only make recommendations of what to check. It is your choice to replace parts or not. Replacement should be done once proper diagnosis has determined that the component to be replaced has been found at fault or as a contributing factor.

 

I'm assuming that remark was aimed at the local part swappers and not the forum community <G>

 

For what it's worth, and it's not worth much, I had a similar problem with a P0300 error code. I thought P0300 was a misfire. Random cylinder misfire if I recall. Anyway, my issue happened about 12 months AFTER replacing the distributor. Turned out to be the darn camshaft position sensor, which is mounted inside the distributor. Replaced that and my P0300 went away. truck ran consistently better there after.

 

You crashed my spellcheck .

 

I was not implying the comment to anyone, me being a woman no one wants to listen to me when I suggest anything. No one in this area knows how to diagnose anything correctly. Anyhow I guess I will take it to Coles and have it placed on a computer to see what their codes come up with, but I have done this at local garages and it popped the MAF code and thats where they stop becasue they don't know whats wrong with it. My mechanic has given up on it becasue he don't know whats wrong with it. But I will keep trying!

 

If it's your money, you ask questions. BS has a sort of aroma, a fragrance, that's not really hard to detect.

A circuit is easy to diagnose. MAF circuit - check power coming in to the sensor for proper voltage, check the ground to see if it's not 'open'.

Get them to SHOW, not tell. SHOW me what's wrong with the MAF CIRCUIT. Don't TELL me what the computer TELLS you.

If you squeeze the garden hose sprayer, and no water comes out, do you buy another sprayer?


Yup.


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