Possible engine/gearbox problem

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Metal
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Posts: 19
Joined: Sun Nov 02, 2014 1:53 pm
Year: 1987
Model: Firebird
Engine: 305
Name: Ashley Huby
Location: East Riding, Yorkshire
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Possible engine/gearbox problem

Post by Metal » Tue Dec 09, 2014 7:46 pm

Been having an annoying problem lately of lack of revs when idling causing the engine to cut out, it mostly happens when coming down from fast speeds such as junctions and sometimes when reversing, it usually idles about 700-800 rpm, wondering if there is a way to up the revs manually or is it an ecu job, its an auto box.

Cheers

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banker
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Re: Possible engine/gearbox problem

Post by banker » Tue Dec 09, 2014 8:13 pm

Hi Ashley, your car is on the cusp of carb or injection as they changed in 87. Is yours a carb version?
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With an official 325 horse power and 405 lbs of torque

Metal
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Posts: 19
Joined: Sun Nov 02, 2014 1:53 pm
Year: 1987
Model: Firebird
Engine: 305
Name: Ashley Huby
Location: East Riding, Yorkshire
Contact:

Re: Possible engine/gearbox problem

Post by Metal » Tue Dec 09, 2014 9:50 pm

Its FI, forgot to mention

Big Chief
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Re: Possible engine/gearbox problem

Post by Big Chief » Wed Dec 10, 2014 9:47 am

This problem is usually a distributor problem, pull the cap off and check inside and on the base of the distributor, this could be all mouldy and green which means its not been serviced recently.
Usually a pick up coil and module sorts the problem,whilst your there put new cap and rotor on,
in extreme circumstances the distributor shaft looses its magnetism and cannot trip the pickup.
A sure way of identifying the problem is if it will usually restart easily after stalling then its the distributor, age old problem this one.

Metal
POC Newbie
Posts: 19
Joined: Sun Nov 02, 2014 1:53 pm
Year: 1987
Model: Firebird
Engine: 305
Name: Ashley Huby
Location: East Riding, Yorkshire
Contact:

Re: Possible engine/gearbox problem

Post by Metal » Sun Dec 21, 2014 6:47 pm

Bought a new cap and rotor, should be arriving soon. Also I wondered if the problem lies in the stepper motor on the front of the intake? Are these prone to sticking and are the repairable or would it mean buying a new one

Cheers :thumb:

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