Question about 1998 Chevrolet C1500

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Starts and dies, starts and dies

Ignition turns, truck seems to start then dies, just spent $294 on a new fuel pump, that is not the problem. HELP!!

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  • romarsham Aug 03, 2008

    1990 Chevy Siverado Pickup C1500. Starts, then dies in a couple of seconds. Starts again, then dies right away. After multiple tries, finally kept it running. Ran fine after warmed up. Today, same thing. Changed fuel filter, no change. Did the same thing. Maybe a sensor problem??

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  • 51 Answers

Possible fuel pressure regulator. Altho are u sure you're getting good spark? More testing is needed here. Need to know what your fuel pressure is with "key on engine off" and then "key on, engine ON"...then turn key off and watch pressure bleed down. Bleed down should not fall below 30 psi.

Chris

Posted on Aug 02, 2008

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Engine cranks fine, but will only run 5-6 sec then dies. If you press the gas, it sputters and dies immediately.


Seems like a fuel delivery problem.
May be a bad fuel pump, clogged fuel filter or a fuel line problem.

What car make/model? What engine?

When it dies, try to turn ignition off immediately, wait a couple of seconds and turn the key quickly to the crank position (don't wait with the key in ignition-on position so that the fuel pump doesn't try to pump fuel into the fuel lines).
If it hesitates to start or runs significantly shorter before dying, you have pinpointed a problem with the fuel system.

Pls let me know what you find out.

Nov 27, 2015 | Cars & Trucks

1 Answer

Ignition control module issues


A relative of mine has a '97 GMC 1500. 2 years ago I spent several weeks chasing gremlins on it. Replaced everything - plugs, wires, ICM, TPS, and some other items. How many miles on your truck? It should fire within 1 to 3 turns of starter engagement. I have to ask, how do you know there is no spark or fuel when the engine does not start? Have you checked fuel pressure? Our trouble ended up being the fuel pump. We pulled the bed off the truck and found that the lines and wires at the top of the tank were severely rusting and eroding. I would have never guessed this kind of degradation due to the fact that the truck is so well taken care of. Check your fuel pump and tank thoroughly. Also check the tank filler neck and vent. If it runs for 15 minutes then quits, sounds like the fuel pump might be cutting out. Will not hurt to check and may save you time under the hood. I have poured over those electrical diagrams for the GMC. Alot of things tied into keeping those engines going nowadays. Let me know how things work out. GC.

Mar 01, 2014 | 1993 Chevrolet C1500

1 Answer

1990 olds 98 suddenly dies. starter spray into inj. cover starts it but then immediately dies again. fuel pump and cannister filter ok. new module filter off inj. line under hood. still won't start. w


You cant check fuel pressure that way. You have to connect a fuel pressure guage to the fuel rail at the schrader valve. It should have 30-40psi when ignition is turned on. Injectors not functioning properly will cause a misfire Sounds like a fuel pump or fuel going out.

Jan 01, 2014 | 1990 Oldsmobile Ninety Eight

1 Answer

I have a 1993 Jeep Grand cherokee laredo with the 4.0 its starts for only a few seconds and dies changed the fuel pump and fuel filter and the sercurity light doesn't come on im stumped any help ?


Check the crankshaft position sensor, i have repaired 3 Jeeps (after the owner spent a lot of time and money replacing fuel pumps,TPS, and many other items) then got frustrated, brought it to me and within an hour it was running fine with a new CPS

Apr 04, 2013 | Cars & Trucks

1 Answer

1996 c1500 starts and runs then dies


sounds like a faulty pressure regulator be sure to test it before changing it

Mar 15, 2012 | Chevrolet 1500 Cars & Trucks

1 Answer

I have a 92 ford explorer.it was acting like it was running out of gas.Then it just shut off.The only way i could get it to start was using starting fluid.once started it would stay running.occasionally it...


This is about the third time in a week I have seen this same type problem for Explorers, so maybe it is the hott weather causing so many failures.

We had the almost same problem with my uncles explorer and spent way to much changing this and changing that. While it seemed to run fine most of the time, it would only start with starting fluid and could die just running down the road, so he was afraid to drive it anywhere. We did everything you did, plus some.

When I finally pulled the fuel pump relay and replaced it (about $15 part) the problem was solved. Since this isn't something that fails that often, mechanics forget it is there. Plus is is a pain to get to since it is located on the bottom side of the engine compart fuse box. It is normally the light green one (if it is original)

Jul 14, 2011 | Ford Explorer Cars & Trucks

2 Answers

94 s-15 v-6 vehicle was running great then would not start. Engine turns over. I replaced rotor and cap, spark plugs. The fuel pump was not priming replaced fuel pump did not start at first, air was in...


Replace the oil sending unit,it has a safety feature of cutting off the fuel when the pressure from the oil pump is low,and the sending unit might be the problem.

Jun 13, 2010 | 1994 GMC Jimmy

1 Answer

I have a 1985 Chevy C/30 pick-up with a 7.4L 454. Truck has been running fine and about a week ago I was driving down the freeway and the motor backfired and and lost power and eventually died. I stopped...


85 with TBI only needs 13lbs of fuel pressure. verify that the fuel filter is clean. there is no easy way to ck fuel pressure, special adapters are needed, I dont have info here at home but there should be a relay for the pump, on the firewall and the oil pressure switch also powers the pump. did you replace the pump trying to fix this problem or did you just mention it to help troubleshoot the problem? verify that the fuel pump wiring has a good ground, should have been a eyelet that bolted to the frame..when you initially turn the key on, you should hera the fuel pump power up for 2 seconds, then go off, after the engine starts, the power for the pump goes through the oil pressure switch.

Sep 19, 2009 | 1985 Chevrolet C3500

1 Answer

Will turn over, but not start


The car is equipped with a security key. your key has a chip in it. when it fails its done. it requires a new ignition switch and programing, as far as i know only the dealer can help. My neighbor just spent $450.00 for the repair 3 weeks ago.

Nov 09, 2008 | 1993 Buick LeSabre

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