Spoon Posted December 19, 2008 Report Share Posted December 19, 2008 I've got this '94 3.1L cutlass with a slight hesitation just off idle after the engine warms up. I've just done a complete tune up, upper intake gaskets, inspected vaccum lines, cleaned egr and iac sensors, the tps readings also look ok. does anyone have any ideas, thanks. Quote Link to comment Share on other sites More sharing options...
slick Posted December 19, 2008 Report Share Posted December 19, 2008 If only when warm, I'd start looking at the coils/ignition module. They can get heatsoaked and cause issues. Any problems with upper rpm's when warm vs. cold? Quote Link to comment Share on other sites More sharing options...
Spoon Posted December 19, 2008 Author Report Share Posted December 19, 2008 no rpms are in normal range when hot and when cold. resistance through coils are very close to the same. as for the ign. module is there any way to check that? Quote Link to comment Share on other sites More sharing options...
1990lumina Posted December 20, 2008 Report Share Posted December 20, 2008 When my injectors shit the bed this summer in the Lumina they caused a hesitation off idle - and eventually it got bad enoguh you could stall it. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.