Truck wont start

Tiny
ANGELARMAND
  • MEMBER
  • 1998 CHEVROLET S-10
  • 120,000 MILES
Changed the engine in the truck, the fuel pump and filter, and the starter. After changing fuel pump tried to start the truck, but the truck will not start. It turns over but does not start. Could the security system keep the truck from starting up, I unhooked the battery for 30 minutes, but the security light did not go off. Do you have any ideas of what I need to do or could do? And thank you for your help
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
DRCRANKNWRENCH
  • MEMBER
Try attached security relearn procedure.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
ANGELARMAND
  • MEMBER
It is a 1999 is it still the same directions, or could it be different.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
DRCRANKNWRENCH
  • MEMBER
Here is 1999.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
CHRISVIER
  • MEMBER
  • 1998 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
I did some modification (lowered it) on the s-10 the friday prior to using my car on sunday to work and it worked fine. Half way to work my car couldn't all of a sudden couldn't go, no power then all of a sudden it just died. Pulled on the side of the road checked everything and looked fine. Tried to jump start it but it wouldnt start. It has a half a tank of gas. Couldnt get it to start so we towed it back home. Took out the bed of the truck and were just guessing that it could be the fuel pump? Or by doing the modification could of triggered something? Or because its old and mileage is high could also be the problem? Or do you think that I might find more problems if I fix the fuel pump? Please advise. I am 19 yrs old and need the car for work and school and I cant afford to buy a brand new car. This s-10 was given to me from my grandparents. Thank you.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
RACEFAN966
  • EXPERT
Ok lowering you truck should not have cause anything to go wrong. Now what I need to know is one how old is the fuel filter? I also need to know what fuel pressure do you have? If you do not have access to a fuel pressure tester then you can do this. Get a rag and a small screwdriver. Find the fuel shradder valve (looks like a tire valve) on the fuel rail. Now depress it slowly (there should be pressure here) and see if you get fuel from it. It should have pressure so be carefull so you don't get it in your eyes. Now if there is no pressure or little pressure then crank the truck over and check again if it don't change then I would recommend fuel pump and strainer and fuel filter. Your fuel system shoud have 40 to 47 psi of fuel pressure. Let me know what you find.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
CHRISVIER
  • MEMBER
Hi racefan966, thanks for your response. We did what you said and it didnt have no pressure at all. I believe the fuel filter has never been changed since it was bought. We just changed the fuel pump the fuel filter and it will crank but it doesn't turn over. Now what? Could it be something else? This could be the question of the day. Could it be a car alarm that can trigger something not to work? I dont know. Again thankyou so much. Your response is greatly appreciated.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
RACEFAN966
  • EXPERT
Do you hear the fuel pump come on as you crank it? If not then we need to check to see if the fuel pump is getting power. When the fuel pump went it may have blown the fuse or the the fuel pump relay and with a digital multi meter we can check that. So I need you to check the ECM B fuse it is a 20 amp this powers the fuel pump relay if this is good then check the gray wire at the fuel pump make sure there is power there, keep in mind when you turn the key on you will only get power there for about 3 seconds so you may need to crank it a few seconds. If that is good then check the black wire (inside the left rear frame rail) for a good ground. If the gray wire at the pump has no power then I would suspect that the fuel pump relay but before just replacing it you will need to check the green wire with the white stripe at the fuel pump relay for power while cranking. If there is power there while cranking then replace the fuel pump relay. Let me know what you find.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
JIM GRIMISON
  • MEMBER
I had this same problem on my 2000 s10. After alot of trouble shooting I found that I had inadvertanly broken the ground wire connection located inside of the frame (driver side by the rear bumper. The wireing sheath prevented seeing it but ohming the ground or black wire it ot told me it was an open ground due to infanant resistance (not 0 ohms) from pump connector to chassis. Hope this helps.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
GREENDODGE
  • MEMBER
  • 1998 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • AUTOMATIC
I have a 1998 chevy s10 with the 4.3 and it won't start. It will turn over but doesn't fire. I even tried using starting fluid and got nothing but a belch after it quit cranking. The check engine light is on but it has been for about 5 years with no problems.(My fathers truck)i can hear the fuel pump kick on when I turn the key so I assume it is working. My father seems to thimk it has jumped time or the plugs are fouled but it was running fine just the other day. I thought maybe the fuel line was frozen since we have had some cold temps. But not sure how to check if it is getting fuel or not
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
RASMATAZ
  • EXPERT
You're using starer fluid and still won't combust -Check for spark
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
RASMATAZ
  • EXPERT
Also you mentioned-a check engine light on
Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis, finding out what's going on.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
ECAR9347
  • MEMBER
  • 1998 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • MANUAL
  • 112,500 MILES
My engine runs fine. It will not start unless I remove the throttle block air box, open the butterfly flapper and spray starter fluid into the throttle block. It will then start. The vehicle is new to me and seems to start ok if the engine is at normal temperature. The previous owner s tells me it has started hard since it was new.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
MERLIN2021
  • EXPERT
Slow cranking speed, extended cranking time, dtc p1626 technical service bulletin reference number(s): 87-65-21, date of issue: august 13, 1998 related ref number(s): 87-65-21 article beginning subject slow cranking speed, extended cranking time, dtc p1626 p1626, hard starting (reprogram pcm) condition some owners may comment about intermittent slow cranking speed and extended cranking time or may describe the condition as hard starting. Some owners may also comment about a vehicle security light that stays on through one key cycle after an extended crank event. Cause the pcm may be induced to synchronize incorrectly during key-up and cranking. This will cause subsequent ignition events to be mis-timed creating a situation where the starter is working against an ignition event. If the vehicle is keyed down and another starting attempt is made, the engine may start normally. Correction reprogram the pcm with the revised calibration that takes into account the above conditions. These calibrations are available on 1998 cd-rom 12 and later versions. Service procedure 1. If the customer has a concern with slow cranking or any of the other conditions noted above, connect a tech 2 scan tool and note the calibration id currently in the pcm. 2. Reprogram the pcm with the new calibration number listed in the table below. 3. Operate the vehicle and check for any additional slow cranking concerns. Models: 1998 chevrolet and gmc "s" models 1998 isuzu hombre with 2.2l engine (vin 4 - rpo ln2)4. If the vehicle still exhibits a slow cranking condition, use appropriate service manual diagnostics to correct the condition. Calibration numbers use the correct calibration from the list shown in fig. 1. Fig. 1: calibration numbers table warranty information for vehicles repaired under warranty, use: warranty information labor operation description labor time j6355 prom-reprogramming 0.4 * diagnosis time may be claimed for 0.0 to 0.3 hours depending on actual time performing diagnosis.
5/11/2010 http

5/11/2010 .
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
MIKEY50009
  • MEMBER
  • 1998 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
I was driving home one day and all the dash lights came on and the truck shutdown one second later the lights went out and the truck was running again then the lights went back on amd the truck quit running went back out a couple days later and it started up, Ishut bit down and tried again and it would not start none of the idiot ligts came on either couldn't set the emergency lights just got buzing sound battery is charged and both terminals work
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
JDL
  • EXPERT
I'd check feed to and from the ignition switch.

Use a digital multimeter across battery posts, have helper turn key to crank. How far does the reading drop? Generic info says it shouldn't drop below 9.6 volts. The starter motor, cranks ok?
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
PRNCESSMELMO
  • MEMBER
  • 1998 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 90,000 MILES
The battery light on the dashboard has been on for about 5 days, but the battery gauge was right in the middle so I was waiting until payday to get a new battery. However, tonight I was driving and all the guages dropped to zero and the dashboard dimmed. I pulled over because I was freaked out. When I tried to start the truck again it would not start. What do you think is wrong, and about how much is it going to cost? Thank you in advance for your time and response.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
STREETWORLD
  • MEMBER
Yeah your battery probably took a crap or your alternator is not charging the reason your dash light s all went dim is because you have no more power/battery left check batt or alternator autozone checks both for free so I would jump start it and head over there with some money for either a batteryh or alternator good luck
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
JOE SAMSELL
  • MEMBER
  • 1998 CHEVROLET S-10
  • 2.3L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 137,000 MILES
Truck won't start when temperature is below 50F.
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)
Tiny
HMAC300
  • EXPERT
Scan for codes and check fuel pressure with a gauge first, auto parts rent it 41-47 psi key on engine off
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Saturday, March 30th, 2019 AT 12:55 PM (Merged)

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