hesitation or hiccup while driving

[tblake]

I see zzp is offering GM MAF sensors again for right around 150.00 if I remember right.

[Firstymer]

Where can I buy a MAF sensor at a reasonable price? I notice sometimes my 00' GP se v6 continue to rough idle at stop lights or sudden stops after speeding; and occasionally hesitation while driving.

[tblake]

3100 and 3800 MAFS are differed design. Mr. Firstimer, check out www.rockauto.com. The MAF is a rather expensive part to just replace without diagnosis. You could also try disconnecting it to see if your problem changes. I have also done the screwdriver test at idle. Smack the MAF with the handle of a scredriver and if the idle changes the MAF is bad.

[gutterjrn]

Cleaning the MAF did not work. I may try a junk yard first to see if I can find a MAF from a 99 GT, otherwise I will order one from zzp.

Also I have a long trip to make this weekend so this will be a great test to see if it truely is a MAF problem as to this point all my test drives have been limited to 5 miles.

[olopezm]

Maybe some people don't like it but try a reman MAF from autozone, I got one from there not long ago and it was cheaper than anywhere else (about $130 dlls with the currency exchange from pesos to dollars), they will take the old one in exchange. Mine has been working fine, unfortunately the car is sitting in my garage because I haven't had spare time to buy and replace the left side trailing arm .

[richtazz]

My car just recently started doing the same thing. Hesitation at shift points, lurching/surging/stalling at stops, etc... and only after the car was warmed up. I was fearing it was trans issues due to the lurching when sitting at a stoplight. No CEL, no codes (pending or otherwise). I decided to hook up my scan tool and have the wife drive while I monitored the scanner data. Every time the car acted up, the MAF signal dropped. Replacing the MAF fixed my issues. I would suggest against a salvage yard MAF, as these are a high failure part. Also, the reman units (even the Ac-Delco reman ones) are questionable at best. I have seen as high as a 50% failure rate, so I believe you got lucky olopezm. If you're going to keep the car, buy a new Delphi/Ac-Delco sensor and be done with it.

[gutterjrn]

The $50 risk is working out thus far, the junk yard MAF is working correctly but who knows for how long. I really didnt want to spend 150+ for a new one.

[tblake]

50.00 for a junkyard one? Where at? All the places around me want approx 80.00 for a used one. Mine just went out yesterday again. Car would not accellerate, and then died. Would not restart. Pulled the plug on the MAF and it started right back up.

Its unplugged right now until I can figure something out.

I'm torn. Cause if these Reman/ZZP MAF's only last 2 years topps, and a dealer one is over $300.00. I found a local junkyard that has a used MAF off an 04 bonne with 59,000 miles that was in a front end collision. They want 100.00 for it, spendy for used, but they give a lifetime replacement warrenty so if I ever have an issue again with it, all I have to do is bring it back with my reciept and they will hand me a replacement (used) one no questions asked.

Otherwise I thought about trying to run a 3100/3400 MAF. They seem to have a lower failure rate, and don't appear to block airflow as badly as the 3800 one does. Only issue is I'd need to buy one and spend some serious time tuning the MAF tables with my powertuner.

[gutterjrn]

I got mine at LKQ, they initially wanted 65 for it and I talked them into 50. It was out of a 01 monte carlo with 60k. Another junkyard I tried wanted 100 which I too thought was crazy. LKQ told me if it didnt work I could bring it back for credit, thus I figured if it didnt work I would just try another one.