1988 Chevy Blazer Power

KRAFTYMAMA54

MEMBER
1988 CHEVROLET BLAZER
4 CYL
4WD
AUTOMATIC
186 MILES

The blazer ran well, but then would not go over 60mph when on the road. Now wont hardly get any power, Has all new parts including a bebuilt trans, problem existed before trans exchange. Can you tell me what may be the problem. Other information states that it is not the ingine or the trans. But something plugged up, can you give me some idea as to wht is wrong?

5 Replies

RHALL77

MECHANIC
3,361 POSTS

When was the last time you had a tune up. Have you checked for a vacuum leak and ect.

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Monday, August 4th, 2008 AT 8:51 PM

KRAFTYMAMA54

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Just had a tune -up. New battery, brakes, rebuilt trans, have not checked for vacuum leaks, would make some type of noise to indicate the problem? Where should I look for leak.

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Monday, August 4th, 2008 AT 9:01 PM

RHALL77

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3,361 POSTS

Did you also check for correct timing. As for vacuum lines, just look around and see if there is any disconnected. You should hear a hissing noiseif there is one disconnected. You may also wanna check and see if you have a bad cat converter

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Monday, August 4th, 2008 AT 9:43 PM

KRAFTYMAMA54

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2 POSTS

Thanks I do believe my Cat Converter has been bad for a while. Can you tell me an easy way to check it?

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Monday, August 4th, 2008 AT 10:16 PM

RHALL77

MECHANIC
3,361 POSTS

You can either see if there is pressure at the tail pipe, or with a temp gun see if there is a temp change at the input and output of the cat converter.