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1999 S-10 4.3L V6 Nagging Hot Start Problem #4501172
08/29/17 09:24 AM
08/29/17 09:24 AM
Joined: Jun 2002
Posts: 19,520
Iowegia - USA
MolaKule Offline OP
MolaKule  Offline OP
Joined: Jun 2002
Posts: 19,520
Iowegia - USA
Well, we finally found the problem with the Hot Start.

Lately, I had been getting a couple of "Fouled Plug" codes.

I mixed up a strong solvent brew consisting of fuel grade PEA, Toluene, chloro-alkybenzene's, chlorohexane's, Naphtha, Kerosene, and Isopropyl alcohol. This improved things slightly, but after a 1/8 tank of this mixed with 93 octane gasoline, still no go.

In addition, the idle was getting more erratic and idle RPM would drop after warm up. A hot Restart required the throttle to be opened a bit or no go.

I took the S-10 back to my trusted mechanic and asked him to keep it until he found the problem this time.

Apparently, this fuel delivery system has the CMFI system.

After two days they verified it was the fuel pressure regulator leaking down and actually saw the fuel pressure drop after warm up. The poppet valves are working as designed.

So "Sammy" the S-10 (as my grandsons call it) now runs like it's on steroids. happy

Many thanks to Trav for his suggestions. thumbsup

Last edited by MolaKule; 08/29/17 09:36 AM.

Scars remind us of where we have been, but do not have to dictate where we are going.
Re: 1999 S-10 4.3L V6 Nagging Hot Start Problem [Re: MolaKule] #4501414
08/29/17 02:10 PM
08/29/17 02:10 PM
Joined: Mar 2011
Posts: 411
new jersey
hemitruck Offline
hemitruck  Offline
Joined: Mar 2011
Posts: 411
new jersey
Always liked those trucks. How many miles.

Re: 1999 S-10 4.3L V6 Nagging Hot Start Problem [Re: MolaKule] #4501418
08/29/17 02:17 PM
08/29/17 02:17 PM
Joined: Sep 2013
Posts: 10,683
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,683
Indiana
Is this connected to the spider?

Were you able to buy just the regulator or did you need to buy a complete assembly?


03 Jeep WJ 4.0 202k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 186k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 153k Synpower 5w30 Supertech ST3980 (Ecore)

Re: 1999 S-10 4.3L V6 Nagging Hot Start Problem [Re: hemitruck] #4501882
08/29/17 10:32 PM
08/29/17 10:32 PM
Joined: Jun 2002
Posts: 19,520
Iowegia - USA
MolaKule Offline OP
MolaKule  Offline OP
Joined: Jun 2002
Posts: 19,520
Iowegia - USA
Originally Posted By: hemitruck
Always liked those trucks. How many miles.?



206,000 miles.

Last edited by MolaKule; 08/29/17 10:33 PM.

Scars remind us of where we have been, but do not have to dictate where we are going.
Re: 1999 S-10 4.3L V6 Nagging Hot Start Problem [Re: dlundblad] #4501883
08/29/17 10:33 PM
08/29/17 10:33 PM
Joined: Jun 2002
Posts: 19,520
Iowegia - USA
MolaKule Offline OP
MolaKule  Offline OP
Joined: Jun 2002
Posts: 19,520
Iowegia - USA
Originally Posted By: dlundblad
Is this connected to the spider?

Were you able to buy just the regulator or did you need to buy a complete assembly?


Thankfully, just the regulator.


Scars remind us of where we have been, but do not have to dictate where we are going.
Re: 1999 S-10 4.3L V6 Nagging Hot Start Problem [Re: MolaKule] #4501943
08/30/17 01:59 AM
08/30/17 01:59 AM
Joined: Aug 2010
Posts: 5,677
WatUpDoc
ltslimjim Offline
ltslimjim  Offline
Joined: Aug 2010
Posts: 5,677
WatUpDoc
Nice. My dad's 2001 S-10 4.3L is having some strange electrical problems; wipers randomly not working and vehicle refusing to allow windows to roll up. lol


92 Civic Hatch (stolen frown RIP)
07 Honda Fit Sport (A/T) WELCOME thumbsup
Re: 1999 S-10 4.3L V6 Nagging Hot Start Problem [Re: MolaKule] #4502183
08/30/17 09:27 AM
08/30/17 09:27 AM
Joined: Jun 2002
Posts: 19,520
Iowegia - USA
MolaKule Offline OP
MolaKule  Offline OP
Joined: Jun 2002
Posts: 19,520
Iowegia - USA
This one has the manual window crank, which I prefer and less costly to repair.

This is also my Storm Spotting vehicle, so when I need it to start and go, I need it to start and go, NOW! shocked2


Scars remind us of where we have been, but do not have to dictate where we are going.

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