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1997 Chevy suburban k1500 starter dragging in morning only!


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scorpio1971
Novice

Jul 19, 2015, 11:07 AM

Post #1 of 21 (1653 views)
  post locked   1997 Chevy suburban k1500 starter dragging in morning only!  

Hi
I have 97 Chevy suburban K 1500 5.7. Didn't notice any pre symptoms before this started. First start up in mornings starter would turn normal then drag several times and repeat several times before truck would fire. Once started engine would run very rough then smooth out. Also after putting into drive and accelerating it would fall on its face and even die at times. I have noticed that the problem is substantially worse after a heavy dew or rain over night. After starting and getting past the acceleration problem symptoms basically disappear the rest of the day even after sitting at work for 8 to 10 hours. On occasion the starter will drag just for a second later in day but it is very intermittent. Okay list of repairs I have done. New oem recommended battery, new starter (oem is the large starter not the small starter), I have removed all cables running from battery to starter and replace the connections except the ground to bottom of engine block. It looks very clean and is securely bolted on tightly. I did replace the connection at battery. Battery also received new connection. So if you need any more info I will do whatever it takes to get it for you. I very much appreciate any help or recommendations you can give me! Thank you Heath


Tom Greenleaf
Ultimate Carjunky / Moderator
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Jul 19, 2015, 11:21 AM

Post #2 of 21 (1644 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

IDK what you mean by "drag" then start? NO matter. It starts so battery is then out of the picture.
If dampness is clearly aggravating this check whole air flow path that it's all on right. Dist cap might get damp but none on these to me ever from any normal to hard rains.


Next is see if fuel pressure is up to par and holds. Wildish maybe if this can run lousy, slow to start right up it might be choking on raw fuel?


Codes would definitely be showing with those complaints to help,


T



scorpio1971
Novice

Jul 19, 2015, 1:35 PM

Post #3 of 21 (1635 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

I will have to check fuel pressure tomorrow cause I do not have a gauge. What I mean by dragging is that it will crank the engine properly then it turns very slow like it would with a very low battery then it will crank properly again for few rotations then back to the very slow crank it may do this three to four times before starting. What puzzles me all of the symptoms I have explained started at the same time. I did forget to mention it does have a engine light on and the code shows a egr valve but that was before this new issue.


Tom Greenleaf
Ultimate Carjunky / Moderator
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Jul 19, 2015, 1:50 PM

Post #4 of 21 (1626 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

OK- just about the starter struggle and change crank speed. You said you changed or fixed a cable end and believe battery is fine. Cables IMO suk and still in question. You should see this as a voltage drop at battery eyelet vs batter bolt and another test down to eyelet at starter.


Ground is equally as important. As said, once running that issue is over about the way it runs as starter takes tons more juice than anything else,


T



Hammer Time
Ultimate Carjunky / Moderator
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Jul 19, 2015, 2:14 PM

Post #5 of 21 (1622 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

Sounds like it's burning bits of fuel. I second the fuel pressure suggestion. This system requires a MINIMUM of 55PSI to even run. The spec is 60-66PSI.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
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Jul 19, 2015, 6:28 PM

Post #6 of 21 (1615 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

I'd be looking at the crank sensor as a possible culprit. At least before it gets worse and blows the intake gasket or pops the starter of the side of the block.

A crank sensor issue in combination with a weakish battery can cause the PCM to over advance the ignition timing during cranking causing kick backs, back fires, breaking the starter drive, or in worse case, blowing the starter right of the starter boss.

A worn distributor gear could cause that scenero also.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


scorpio1971
Novice

Jul 19, 2015, 7:48 PM

Post #7 of 21 (1610 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

OK I've been doing some reading and not but a few min ago I ran across the symptoms for crank sensor it also said faulty ignition has some of the simular symptoms. Can a faulty Ignition cause a running problem after start?


scorpio1971
Novice

Jul 19, 2015, 8:27 PM

Post #8 of 21 (1609 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

Well Discretesignals

Concidering all the symptoms I think you hit the nail on the head. I'm going to check for codes first before replacing just to make sure. Thanks for your feedback it is very much appreciated!


scorpio1971
Novice

Jul 31, 2015, 9:04 PM

Post #9 of 21 (1535 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

Thought I would check in. I replaced the crank position sensor. No codes involving the crank sensor but nothing else really fit the symptoms so I figured for $59 and a simple install no biggie. Well this suburban has never in the time I have owned it ran this good! Thank you for the advice it was very much appreciated!


Tom Greenleaf
Ultimate Carjunky / Moderator
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Aug 1, 2015, 12:37 AM

Post #10 of 21 (1533 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

Glad to hear that and thanks for coming back with results. Will close out as solved now to keep spammer out. YOU can request it opened again any time - just ask any moderator,


T



Tom Greenleaf
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Aug 2, 2015, 9:28 AM

Post #11 of 21 (1506 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

Re-opened upon OP's request, T


scorpio1971
Novice

Aug 2, 2015, 8:04 PM

Post #12 of 21 (1496 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

Thanks for reopening my thread! I installed the new crankshaft position sensor. Truck ran great the first day. Unfortunately the next morning the symptoms were back. The running problem changed though. Now when I accelerate it doesn't stall it's strange not sure how to explain it but I can put pedal to the floor and it doesn't accelerate but it doesn't try and die either.when I installed the sensor the directions said to check for damage do to bearing getting warn and sagging of crank can cause contact to sensor. Everything looked OK. The sensor came with two shims I did not install them. My question is it possible the clearance is to tight and giving a inaccurate reading to the computer or possibly the distributor. How would I go about eliminate the distributor as being the culprit? Thanks for the advice if anyone can offer any!


Discretesignals
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Aug 2, 2015, 8:56 PM

Post #13 of 21 (1492 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

Probably the best way to check the clearance between the sensor and the tone wheel is to put a piece of modeling clay on the end of the sensor. Then make sure the tone wheel tooth is pointing directly at the crank sensor hole. Put the sensor in and pull it back out and see how much thickness the clay has where it made an impression. You want the sensor as close to the tone wheel as possible without making contact.

Is the check engine light on? Any codes stored? Maybe it is time to connect up a fuel pressure gauge and monitor the pressure with the gauge laying on the windshield while the problem is happening to eliminate a fuel delivery issue.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Aug 2, 2015, 8:58 PM)


scorpio1971
Novice

Aug 3, 2015, 3:33 AM

Post #14 of 21 (1483 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

Check engine light is on. Code is for egr valve. I have one ordered it's in transit to me right now. I tried cleaning it but the light comes back on so I decided to replace with new. I have a friend at work with fuel gauge I will try and get that done tonight and share results. Thanks


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Aug 3, 2015, 3:37 AM

Post #15 of 21 (1481 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

What is the code number?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


scorpio1971
Novice

Aug 3, 2015, 10:28 AM

Post #16 of 21 (1469 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

1406


scorpio1971
Novice

Aug 5, 2015, 11:53 PM

Post #17 of 21 (1425 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

The friend I thought had fuel pressure gauge doesn't have one. I talked to local shop owner he said he will give me a hand so I'm leaving truck Friday at his shop and comin in first thing Saturday so we can get pressure when it usually falters the most. I did have a odd and I believe relevant thing happen yesterday. The ground at block it has two nuts one behind ground closest to engine the one in front of cable. When I originally checked it I put wrench on back side and socket on front it was good and tight. This time I just used the front nut. I got about a full turn then it was tight. Got in truck fired right up then check engine light turned OFF it ran great. Next morn all symptoms returned engine light is on again and running problem is worse than before. I will have those pressure #'s soon as possible sat. Thanks


Tom Greenleaf
Ultimate Carjunky / Moderator
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Aug 6, 2015, 12:21 AM

Post #18 of 21 (1422 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

May not be the problem but fix the ground to block connection! Why the nuts first, then cable and another nut? Just might be factory and messed up. Make it right with one proper bolt or stud and one nut - all clean and good. If messed up find another good grounding spot.


Said earlier by Discretesignals: If wrong power to starter with just the wrong problem starter can break off an ear of engine block and you don't want that!


T



(This post was edited by Tom Greenleaf on Aug 6, 2015, 12:23 AM)


koontzy
User

Aug 9, 2016, 5:22 PM

Post #19 of 21 (488 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

on some of these trucks you can not adjust the distributor the computer sets the timing but the distributor gear will get ware and cause that to happen thank the gear is about 9 bucks at carquest


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 9, 2016, 7:06 PM

Post #20 of 21 (487 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

If the distributor is not installed correctly it will set a P1345 code.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



koontzy
User

Aug 9, 2016, 7:30 PM

Post #21 of 21 (483 views)
  post locked   Re: 1997 Chevy suburban k1500 starter dragging in morning only!  

i have ran into it ware it did not set a code but if you watched on the scaner timing will jump from -timing to advanced timing quicker than scaner can pick up the degrees because of a worn distributor gear not all things will show up as a code but if it were off a tooth then yes it will give you that code






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