1995 Isuzu Trooper won't start/run?

1995 ISUZU TROOPER
15,000 MILES • 6 CYL • 4WD • MANUAL
Avatar
CS85210
  • MEMBER
  • 1 POST
Just the past 5 days my car was running rough just after starting in movement in 1st & 2nd gear then after a few minutes it was fine. It wasn't drastic but noticable. Then this afternopon when I went to start it it was incredibly rough with no power to drive it. I tried to start it 4 different times then it woudn't start at all. It cranks /turns over fine & the battery is fine. I thought possibley my fuel pump had went since it was theoriginal so I replaced it & the fuel filter. I checked the fuses & relays they are o.k. I'm not sure what else to try. I though about the fuel pressure regulator. Do you have any suggestions to get my car running? I appreciate your help. Thanks
Oct 12, 2010 at 5:41 AM
Advertisement
Avatar
RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Hi cs85210, Welcome to 2carpros and TYfor the donation

Do below and comeback with some testing results

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, 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.
Oct 12, 2010 at 6:05 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.