why is my iroc z start hard when warm

Asked by Aug 24, 2013 at 10:52 AM about the Chevrolet Camaro

Question type: Maintenance & Repair

I have a 305 tpi that has been bored and has world heads xtream energy comp cam hpertech chip  header back exhaust.i just replaced starter and battery and and continue to start hard when warm

2 Answers

10,945

Start hard as in it turns over fine but is hard to fire or the starter is having issues rotating the motor? For the first issue you should have somes codes flashing. If not you can check some simple things like the fuel system. Check the idle air POS, clean it if it's dirty. Or a bad O2 sensor. I have not had a TPI so hopefully someone else can help you with it's quirks. (I know the POS TBI system pretty good.) For the second point check the clearance between the starter gear and the flexplate. You should have gear mesh but they should never bind. Heat of the warm engine may expand components and bind the gears. Is your new starter that exact same as the old one, if not or if it is binding you may need to install shims between the starter and the block..

24,005

you have modified your car, so who knows? that's why people just like to put in the 350 crate motors with carbs- no problemo

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