just had head gasket replaced ,after i got it back from the auto shop, use to start good hot or cold ever with bad head gasket.
starts good when cold but after warmed up its hard to start on 1992 Jeep Wrangler
take it back and ask them to look at it under warranty
They hold me because I had suppied the water pump(From don the V dealership a factory replacement part $136.00 that they wouldn't warrany the the job.
they told me there was no warranty because i suppled the water PUMP, from don vee jeep ORGINAL FACTOR PEPLACMENT PART $136.00 dont know what the water pump has to do with starting issues