1994 Chevy Astro

STRAY30

MEMBER
1994 CHEVROLET ASTRO
6 CYL
2WD
AUTOMATIC
142,000 MILES

I have a vibration when in park and when I go in reverse the vibration gets worse. I dont know hwats wrong with the van.

Thursday, April 30th, 2009 AT 11:16 AM

3 Replies

JDL

MECHANIC
16,098 POSTS

Hello, when was the last time you had a tune-up. A misfire can cause a vibration. Just about anything can cause a misfire, fuel--spark--vacuum leak, several things.

Can you check for codes? Anything?

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Thursday, April 30th, 2009 AT 11:35 AM

STRAY30

MEMBER
2 POSTS

I know that im due for a tune up. What do you mean by codes? My spark plus and wires are new thought that was the issuse, cause two of the wires were bad.

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Friday, May 1st, 2009 AT 2:10 PM

JDL

MECHANIC
16,098 POSTS

Hello, if your datalink connector has 12 cavaties like the picture, you can access trouble codes, if there are any. Use a jumper wire between the A & B terminals, turn the key to on, no crank, the check engine lite starts flashing, you count the flashes to get the codes.

Also, I'm not sure of your vehicle vin? Vin W is the spider fuel system, that system is noted for problems. If it is a misfire problem, I can't tell if it is spark or fuel,maybe something else?

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Friday, May 1st, 2009 AT 6:20 PM