1997 Chevy Blazer Guys I need help !

JULIDESIGNS

MEMBER
1997 CHEVROLET BLAZER

Shakes or Wobbles problem
1997 Chevy Blazer 6 cyl Four Wheel Drive Automatic

My chevy blazer just under 200k miles, has had a new fuel pump, fuel filter and abt three months ago a new Fuel Pressure Regulator, Now for my luck every morning when I come to a complete stop I press the gas pedal and it atcs like it dosent want to accelarate fast enough, after moving few seconds after it bogs down, then it is fine. It does it mostly in the morning and after a complete stop and it gets worst as I turn. If I am in the highway it drives fine. The shop told me I will need a complete tune up, I been looking around for the parts and they seem so expensive so I want to wait a little, they will charge me $100 for the tune up if I bring the parts, I was thinking of adding a Lucas Tune up in a bottle to the gas tank when I fill up again, until I can get all of the parts ready. You guys think that doing that can help the problem a bit? And are those really the symptoms of a need of a tune up, No check engine light only once in while the Air bag light comes up. Please help me I dont know much abt cars, Can't afford a new one for a while.
thanks in advanced.

3 Replies

MOONDOG_67_2000

MEMBER
12 POSTS

I do not care what claims are on any bottle, you can not get a tune up out of a bottle.
As to your car, it sounds like the O2 mapping sensor is malfunctioning.
This mapping sensor is responsible for reading the exhaust so it can regulate the gas to air mixture. Also this sensor sends information to the cars onboard computer so it can advance and devance the timming as well.
If the O2 sensor is clogged up with suit, than it will not properly sense the mixture in the exhaust. This usually means your mixture will be rich causing your engine to be sluggish and seem to want to stall, sometimes your car will stall due to the plugs fouling out from over exposure to the gas. The O2 sensor is easy to spot, it kind of looks like a spark plug that has been screwed into the exhaust pipe and another in the cross over by the manifolds. There should be at least 2 of them. Just use the right sized box end, socket wrench or a pipe wrench to unscrew them to replace them.
After that you may need to change the spark plugs due to being over burden with gas. Good luck and I hope you dont use that tune up in a bottle.
At the very least, try to take out the old O2 sensors and spray them with a parts cleaner to try to get them to sense the mixture again. Like before, good luck and dont use that bottle.