My Hyundai

WHATAKAHUNA

MEMBER
2002 HYUNDAI ACCENT
6 CYL
AWD
AUTOMATIC
120,000 MILES

2002 hyundai santa fe 2.7 dohc 6cyl. Won't start will not start for days then it will. Drive it the day it starts then when I turn it off it will not start for days. Have changed timing belt, valve cover gasket, ignition coils, crank shaft sensor. And the dealer found a lose ground and tighten it work for only one day. What can it be help

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Next time it refuses to start don't wait for it to make up its mind-do below immediately to determine if its fuel or spark problem

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if okay-check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems
with compression and valves opening and closing at the wrong time/broken or jumped timing
belt/chain.