Question about 1988 Isuzu Spacecab

1 Answer

Truck starts very hard or not at all when cold

After warm up starts just fine. Fuel psi is 42, and I have spark Vehile 1989

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 100 Answers

Check your timimg, sounds like it is not advancing properly

Posted on Feb 16, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Hard to start when hot did what the book said but still not fix


You need to run a fuel pressure leak down test, the fuel pressure test port is on the engine in the pipe that sits over the fuel injectors and supplies them fuel. You will need to buy or borrow a fuel pressure test gauge. Hook up the gauge and turn the keu on, make sure you have no leak at the connection point of the fuel pressure test gauge, then shut the engine down, watch the gauge, the fuel fuel pressure should not drop more than about 3-5 PSI, if it goes down more than that you have a defective fuel pump.

Jul 31, 2016 | Cars & Trucks

1 Answer

96 sonoma 4.3 vortec crank/no start/no spark


Have you changed the spark plugs for new ones?

Jul 27, 2014 | 1996 GMC Sonoma

1 Answer

1989 tracker. hard to start when cold but starts fine when warm.


89 has the old stand alone spark distributor.
the ECU is spark free, (no player here)
so here is the list for this engine 1.3 or 1.6L
the 1.3 has a carb. (last one) and is NOT EFI ,
you never said which engine it has. so ill guess at the 1.6L
This engine will have hard starting for the fooling reasons.
we dont guess at it we just do the tests.
  • Bad fuel.
  • Never tunedup this decade or every 60,000 miles per opr. guide.
  • low engine compression 150 good, if all are very low the cam timing belt slipped., (they all do , ignored) and is 60k service point.
  • CEL dead key on, bad ECU or lamp bad.
  • CEL glowing running, its telling you what is wrong, get the flash codes (DTC's)
  • Too high fuel pressure. (bad regulator in front of TB)
  • ECT bad. the 2 pin engine coolant temp sensor is bad. test it.
  • The injector leaks in the throttle body (look with eyes)
  • You find that adding 5-10% throttle cranking makes it more easy that is a bad, IAC valve, the valve at the base of the throttle body is stuck closed and kills all cold start air supply. making cold starts very hard, unless tricked with right foot. yes?
  • when any gas engine fails to start cold, i check for too much or too little starting fuel. and for very good spark.
  • Good engine, good spark the good fueling, there are tests for each, ASK?

Nov 23, 2013 | 1989 Geo Tracker

1 Answer

1989 Toyota 4 runner 4 EFI hard to start when cold


Have you checked fuel pressure before and after the first attempt to start ?
It could be low fuel pressure or a problem with the cold start injector if equipped.

Feb 21, 2013 | 1989 Toyota 4Runner

1 Answer

1989 supra will start and run fine untill it is warm, then it will cut off and wont start back untill it is cold again. WHATS WRONG???


dont no about that but check coil pack when it wont start and see if you have spark if it doesnt check for power to coil if you have spark its on the fuel side

Jan 10, 2013 | Toyota Supra Cars & Trucks

1 Answer

89 dodge shadow. hard start. normal idle cold, fast idle warm. sometimes it wont start until i hear fuel pump activate.


Hello,
The car may be hard to start because it may need a normal tune-up. If the spark plugs are pretty used, they will slowly stop burning as much fuel because the spark slowly gets lesser and lesser. On a cold day the fuel is harder to ignite with a small amount of spark.
Normal idle when its cold means that your cars idle is probably too high. If you lower the idle, the choke on a cold day will keep the idle a little higher until the motor warms and then it will kick back off. If the idle is too high, it will run very rich, smothering itself with fuel, and causing the idle to stay low. When the car warms, its creating better spark when its warm, and with the idle being too high its running at a fast idle.
The car wont start sometimes can be the cause of a few things. If the ground is bad on the fuel pump, it wont make a good connection sometimes for when you turn the key on, the fuel pump dont pump the fuel to the engine. Another one can be that your accessory switch can be loose going to the fuel pump. I think its your ground though. Good luck! Hope this helps.
Have a nice day. -Steve

Dec 06, 2009 | 1989 Dodge Shadow

1 Answer

Hard to start


have u check you spark plug and leads make sure they are not worn out(or when was the last time you change them).or your injector could be block u should get some injector cleaner and pour it in your fuel tank when your next fill ( or get some one to clean them out $30 per injector)

Jul 04, 2009 | 1999 Nissan Maxima

1 Answer

2002 blazer 4 wheel drive hard to start


If the pressure is slow to rise, you should consider changing the fuel filter if it has not been done in the past 30,000 miles.
Next, disconnect a spark plug and check for spark while engine is cranking. Use a spark tester or old spark plug grounded to the engine block.
Let me know.
Regards,

Mar 23, 2009 | 2002 Chevrolet Blazer

1 Answer

1993 4.0l v6 ext xlt


Sounds like your fuel pump is going out on you. Check your fuel pressure. You should have 40 psi when the key is in "on" position. You should have no less than 5 psi under that when it's running.

Jun 10, 2008 | 1993 Ford Ranger SuperCab

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

73 people viewed this question

Ask a Question

Usually answered in minutes!

Top Isuzu Experts

yadayada
yadayada

Level 3 Expert

61249 Answers

Steve Hurc
Steve Hurc

Level 3 Expert

450 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Are you an Isuzu Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...