You are here: Forums Pickups Chevrolet S-10 & GMC S15 Sonoma Chevy S10 - GMC S15 and Sonoma Starting problems

Chevy S10 - GMC S15 and Sonoma Starting problems

195 messages,  Last post on Nov 20, 2009 at 8:21 AM

You are in the Chevrolet S-10 & GMC S15 Sonoma Forum. Your Host is kcram

What is this discussion about? Chevrolet S-10, GMC S-15, GMC Sonoma, Engine, Truck

Messages Page 11 of 20 1 ... 8 9 10 11 12 13 14 ... 20 Prev Next Last

Go To Msg # Search This Discussion

#96 of 195 Re: Any other suggestions??????? [nighthawk5556] by gonogo May 07, 2008 (7:36 am)
Replying to: nighthawk5556 (May 06, 2008 5:39 pm) You already proved it's a fuel problem. Do you hear the pump run for 2 seconds with key on run? Try to start it and at the same time have some one hit the bottom of the tank below the fuel pump with a mallet or piece of 2X4, see if it starts.
#97 of 195 Mixed up...... by nighthawk5556 May 07, 2008 (2:59 pm)
Mine isn't a fuel problem, lol. I posted before the one about the loss of fuel pressure. Then when I asked for other ideas I ended up under someone else's post...................................... Don't know what kinda problem I got Replies to this message: gonogo (May 08, 2008 7:51 am) tony78 (May 09, 2008 2:19 pm)
#98 of 195 Re: Mixed up...... [nighthawk5556] by gonogo May 08, 2008 (7:51 am)
Replying to: nighthawk5556 (May 07, 2008 2:59 pm) Ya, clicked on the wrong one. Replies to this message: tony78 (May 09, 2008 2:19 pm)
#99 of 195 Re: 2002 GMC Sonoma 4.3L [nighthawk5556] by tony78 May 09, 2008 (2:09 pm)
Replying to: nighthawk5556 (May 03, 2008 10:53 pm) Interesting story, 1st thing to remember is to never jump start a car that has a computer or several computers that operate different systems, the proper way to jump start a comp controlled car is to disconnect the pos/neg cables,then charge the battery, preferably with a trickle charger if the battery is really low (checked with a volt/ohm meter first). The biggest problem with jump starting is that $en$ative and expen$ive electronic systems don't really like to get hit with a voltage spike. As for the starter the maximum time it should spin is about 15 seconds with a 3 to 5 minute cool down time between each cycle, the cycle time is variable as it depends on ambient/radiated temperature (heatsoak). Spark can be tested with GM tool ST-125 (looks like a spark plug with an alligator clip attached) blue spark=good, yellow=weak ignition, as for checking the ignition system follow in this order : plugs, plug wires, distributor cap, rotor, igntion module, coil. Hope this helps.
#100 of 195 Re: Mixed up...... [gonogo] by tony78 May 09, 2008 (2:19 pm)
Replying to: gonogo (May 08, 2008 7:51 am) oops! refer to forest gump, it happens.
#101 of 195 Re: got everything except fuel. [dunc2] by tony78 May 09, 2008 (3:05 pm)
Replying to: dunc2 (May 05, 2008 5:54 pm) The possible reason the truck wouldn't start after your friend (?) ran it dry was because the fuel lines had air in them, back in the day we called that ' vapor lock' , try bleeding the air from the fuel line, the shop does this at the point where the fuel inlet line connects to the pressure regulator fuel rail assembly, or where the fuel line connects to the throttle body, this can be accomplished by using a vacuum pump (snap-on tools # YA 4000A, or equivalent). caution a flash fire can result if you try and loosen line while engine is cranked, wrong way to bleed air.
#102 of 195 Basic Tools For The Home Mechanic by tony78 May 09, 2008 (3:39 pm)
A. volt/ohm meter B. test light C. compression guage D. vacuum pump/guage E. torque wrench F. screw drivers/phillips/standard/torx G.socket set /metric/english/ 1/4, 3/8, 1/2 drive H. wrenchs /box/open end/crow foot
#103 of 195 Hey Tony... by nighthawk5556 May 12, 2008 (7:54 pm)
Getting new starter tomorrow..........if we get the GM tester and it proves to be a weak spark, then what?
#104 of 195 ??????? by nighthawk5556 May 14, 2008 (4:04 pm)
Boosting the truck was our only resort, as we didn't have a charger. Still didn't change anything. It does the same thing now as it did when it wouldn't crank. I'm sure that GM tool is the same as the spark tester I got. Just goes 'in-line'. Don't know how well it checks it as far as 'color-coded' goes.......but it happened to be light blue. May just be the color of the bulb though, lol. Any spark will fire with gas and air both present though, right? Weak spark would just make it run crappy......or so it seems. New starter still not in.......or haven't heard yet.
#105 of 195 87' s10 2.8 ?ignition? 3 turns to start???? by woodnrust May 19, 2008 (5:22 pm)
i have a 1987 s10 2.8L front wheel, 150,000 miles, just replaced o2 sensor, pcv valve, air filter, oil, and oil filter. inspected gas pump and lines, the vaccume lines, cleaned carburetor, (with carb cleaner spray) i replaced the plugs cables and distributor cap last year, used high end stuff, inspected it all.   i have to crank the engine over three times to start it, or one good 10-15 sec one to start it. it fires during the crank over. when this problem started occurring the check engine light intermediately comes on, at the same time the light is on the truck runs ruff, mostly this happens in the morning. so when the light is on it runs ruff when no light, it runs good, and the hole time its takes 3 good cranks to start.???????????? any help much appreciated... Replies to this message: tech3363 (Jun 05, 2008 12:46 pm)

Messages Page 11 of 20 1 ... 8 9 10 11 12 13 14 ... 20 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums Pickups Chevrolet S-10 & GMC S15 Sonoma Chevy S10 - GMC S15 and Sonoma Starting problems