Questions & Answers for: GMC hard to start when hot

...hard to start 2005 yukon xl hard to strat hot or cold-- it turns a little bit to long before it starts HOW MANY MILES? Has there ever been any major mechanical work done? fuel filter might be ...

...hard start. Have to prime throttle body when it is cold to start. Usually starts when hot. It starts right up after primed and runs fine. Any suggestions? could be your battery is getting old they ...

...hard to start when engine is hot. What could be the problem? Weak started windings...this use to happen alot with GM/Chevy trucks. Your starter may just need replaced, and/or the heat sheild which ...

...HARD TO START WHEN COLD AND HOT.USUALLY STARTS ON SECOND TRY. 02 sierra 1500 5.3 starts very quick when cold but when hot cranks a lot before starting,I replaced fuel pump and filter did not help.It ...

hard to start and I gaped the plugs that I already had to the specified gap and now it starts really hard. What do I need to do. the coil might need replacing ,i have an old caddy it was hard to start

...hard to start leave it over night it fires right up. I am always able to get it started. I have heard this is a comon problem, is it injectors leaking or a pressure regulater . I hate to spend more ...

to start but not on a regular basis starts fine sometimes and starts hard others replace fuel filter, manditory ! replace air filter as well. didn't I just answer a similiar problem just a moment ago

hard to start my 1998 gmc k2500 5.7 engine is hard to start when hot, it starts fine 1st thing in the morn then will crank alot after warmed up. no codes set, fuel pressure is 60+, put a new fuel pump

...hard to start when sitting overnight - will start after numerous crankings - fuel pump hums when key is turned on, but have to turn key off and on numerous times get new fuel pump about 30k miles ago ...

...running but when i stop it and go to restart it s hard to start Im guessing it's a 4.3 L engine. Sounds like your coil is acting up when the truck heats up. Bad coil, or small wires going to the ...