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1998 GMC diesel Pickup wont start, replaced fuel filter, and fuel injector. still wont start what do you think the problem could be??

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Using a test light, unplug the lift pump and jumper across the electrical terminals. Have someone turn on the key,you should have a light. No light means the oil pressure switch is a possible cause of the no start.
At the oil pressure switch jump the orange wire to the gray wire with a fused wire. your test light at the lift pump should turn on with the key on. This proves the oil switch is a problem. Then plug in the lift pump connector, it should come on. If not the lift pump is bad.

Posted on Sep 07, 2009

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Why is there smoke in my 1999 2.5tdi nissan kingcab pickup d22 changed filters oil heavy on diesel low on power more smoke on acceleration I think it might be a bad injector any ideas would be great


injectors
faulty turbo or internal crack
low cylinder compression
valve leakage
egr valve blocked or blanked off


also check ..
fuel pump pressure fuel filter
if hard starting cold ..glow plugs

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Jun 29, 2016 | Nissan Cars & Trucks

1 Answer

Ran out of fuel. will try to start will not stay running. how to prime fuel line.


You have an electric fuel pump so priming is not needed. I would change the fuel filter. When you pull it out try to inspect it for excessive rust or debris. If there is alot of debris you may have to pull the tank and
replace the sock filter on the pickup. It is a good idea to replace the entire pickup assembly and pump
as long as you have the tank out. Good insurance you wont have to do it again in a month or two!
If it is a diesel I cant help you as I am not familiar with those fuel systems. You still have an electric pump in the tank and it feeds the injectors but as to where to troubleshoot, I dont know. A shop could help.
Try LMC parts out of Kansas.
http://www.lmctruck.com/

Mar 08, 2011 | 1997 GMC Suburban

1 Answer

I have a 1999 gmc 3500 6.5litre turbo diesel tow truck.It will not crank.I replaced the cam sensor,injectors,fuel filter,fuel pump and still wont start.


This sounds strongly like a PMD issue which is on the side of the fuel injection pump. Common issue and easily remedied. There are kits in which put the PMD in a different location as to avoid heat saturation. Let me know if you need to find one.

Oct 26, 2010 | GMC K3500 Cars & Trucks

1 Answer

After i got fuel truck stalled re started then


clogged/bad injectors. fortunately you can get diesel injectors fixed.

thats what it sounds like. is your engine light on.. any codes?

Apr 13, 2010 | 1998 GMC Sierra

1 Answer

We have recentley bought a 6.5 t/diesel 1998 holden surburban, having trouble with it starting, wind and wind but no fire, sometimes it starts beautifully??? The other problem is it has started turning...


Before you start replacing injectors, replace the air and fuel filters. These are critical in a diesel motor. Also check the fuel return line to make sure its not blocked. You should also get yourself a copy of Haynes Diesel Engine Repai Manual, part #10330. It costs about $20 Canadian. It is worth it's weight in gold for a new diesel owner and has an excellent diagnosis and repair section that can walk you through most problems. Another place to check with would be The Diesel Page. It's a web site/blog/forum dedicated to GM 6.2 and 6.5 diesels.
I would be more inclined to suspect the fuel pump as your problem, myself. If you can't get the Haynes book in Australia comment back and we may be able to get 1 shipped out to you.
Hope this helps.

Oct 13, 2009 | 1994 GMC Suburban

1 Answer

The engine surges


Have you checked to see what the actual fuel pressure is at the fuel injectors?

Sep 14, 2009 | 1998 GMC Suburban

1 Answer

1998 GMC DIESEL FUEL PUP


THE WARRANTY PERIOD IS 11YEARS OR 120K MILES FROM THE DATE OF PURCHASE. REMOVE THE OIL FILLER TUBE. THERE IS 3 BOLTS HIDDEN BEHIND IT. TRY NOT TO DROP THEM, THE TIMING COVER WILL HAVE TO BE REMOVED IF YOU DO. THE INTAKE MANIFOLD HAS TO BE REMOVED, THIS MAY REQUIRE YOU TO REMOVE THE THERMOSTAT HOUSING TOO. NOT THE CROSSOVER. NEXT REMOVE THE FUEL INJECTOR LINES, TRY NOT TO BEND THEM OUT OF THE WAY TOO FAR AS IT WILL MAKE INSTALLATION EASIER AND THE LINES WON'T GET CROSSED. REMOVE THE FUEL LINES FROM THE INJECTOR PUMP. REMOVE THE PUMP. AFTER THE INSTALLATION OF THE NEW PUMP YOU WILL BE REQUIRED TO SET THE TIMING WITH A SCANNER. YOU MAY HAVE TO GO TO A DEALERSHIP OR A DIESEL REPAIR SHOP TO HAVE THIS DONE.

Jun 08, 2009 | 1998 GMC Sierra

1 Answer

1988 gmc k1500 wont start


hi, check the connections at the ecm,i think it's under pass front seat,i've had a couple of those years loose injector signal at ecm connector,if you have a test light you can unplug injectors and test across terminals ,it's a 12v signal at inj ,if lights flash on both while cranking try plugging in one at a time and see if either sprays, if one does and not the other, you would have a shorted injector

May 05, 2009 | 1989 GMC K1500

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