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1987 Pontiac Fiero Hard shifting into drive

Tiny
BIGKELS
  • MEMBER
  • 1987 PONTIAC FIERO
  • 114,000 MILES
My 1989 Pontiac fiero idles fine while in park but when I shift into drive the rpms increase and shifts hard into drive. The car shifts fine once it is in drive from 1st to 2nd or 3rd 4th. The car drives great other than that 1st gear jump. Just wondering if anybody could help me with trouble shooting this trouble. Thank you very much for any help you can offer. Thanks again.
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Thursday, September 19th, 2013 AT 3:53 PM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check for vacuum leaks, scan for codes and check fuel pressure with a gauge. Auto parts rent gauges. What engine too
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Thursday, September 19th, 2013 AT 3:55 PM
Tiny
BIGKELS
  • MEMBER
  • 4 POSTS
It a 4 cylinder. Thanks so much for the help.
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Thursday, September 19th, 2013 AT 3:57 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Also clean the throttle plate with choke cleaner and iac hole and spray around bottom of tbi unit it may have blown a gasket.
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Thursday, September 19th, 2013 AT 4:00 PM
Tiny
BIGKELS
  • MEMBER
  • 4 POSTS
It has been sitting for a while and may also have older fuel in it.
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Thursday, September 19th, 2013 AT 4:03 PM
Tiny
BIGKELS
  • MEMBER
  • 4 POSTS
I will try that and get back with you. Thank you so much for you help.
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Thursday, September 19th, 2013 AT 4:11 PM

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