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10-10-2002, 03:24 PM
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#1 |
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Giddy up giddy up...
Join Date: Feb 2001
Location: US
Posts: 483
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Engine hesitation?
This is probably a no brainer but just recently, my engine started hesitating when i slowly step on the gas, gives the feeling like the brakes are on but they aren't. the truck's been off the road for about the past week because i was fixing some body and put in a lift but nothing with the engine was changed. The weather has dropped significantly though, could it be the coldness? The problem does fade as engine warms up but it's anoyying when I first get going. Replace the thermostat with a 195 (160 is in there now)? Something else? Any tips would be appreciated. thanks
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72 with 69 grille and custom 73-87 stepside. BIG BLOCK 409, SM465, NP205, 3/4 axles slung under a 5" lift, 3"bodylift, 112" frame, and 35inch Pro Comp X-terrains... "BUILT NOT BOUGHT" Here's the site... |
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10-10-2002, 04:31 PM
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#2 |
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Registered User
Join Date: Jan 2001
Location: Killingworth, CT. USA
Posts: 3,378
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Possibly the trans is slipping?
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1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist. |
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10-10-2002, 04:47 PM
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#3 |
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Thats the Hillbilly way
Join Date: Jul 2001
Location: Torrance,Ca
Posts: 5,979
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Check to adjustment on the choke .
What carb are you running .  
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BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen , |
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10-10-2002, 05:01 PM
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#4 |
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Giddy up giddy up...
Join Date: Feb 2001
Location: US
Posts: 483
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well, thanks for the replies but it's neither of those... I don't have an automatic and I wired the choke open because i never need it, just pump her twice an it'll fire up every time. I just changed the thermostat to a 195 and that helped a lot but also ran up into the low 200's and maybe I'm a wuss but i don't like the engine that hot, mainly because it's not even warm out today and what if the weather starts going up again. I'll wait for it to cool down and then throw a 180 in there and try it out tomorrow. Thanks again though.
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72 with 69 grille and custom 73-87 stepside. BIG BLOCK 409, SM465, NP205, 3/4 axles slung under a 5" lift, 3"bodylift, 112" frame, and 35inch Pro Comp X-terrains... "BUILT NOT BOUGHT" Here's the site... |
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10-10-2002, 07:18 PM
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#5 |
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Registered User
Join Date: Jan 2001
Location: Killingworth, CT. USA
Posts: 3,378
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In that case check for a healthy "squirt" of fuel in each primary barrel from the accelerator pump when you operate throttle linkage, WITH engine not running please.
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1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist. |
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10-11-2002, 10:38 AM
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#6 |
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67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,856
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it might be the accelerator pump in the carb going bad.
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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10-11-2002, 03:21 PM
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#7 |
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Senior Member
 
Join Date: Sep 2001
Location: Seattle, WA, USA
Posts: 5,817
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Seems funny that he'd have problems with gradual throttle if it were his accel. pump. They work partially on suction don't they? Seems like it would be more obvious if he tried to give it a lot of throttle at once versus just a little bit. Gradual throttle was the only way I could drive my truck with any consistency when my accel. pump was broke. Stomping on the gas would stall the engine, but not feathering the gas gradually...
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'69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA. |
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10-11-2002, 03:47 PM
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#8 |
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Giddy up giddy up...
Join Date: Feb 2001
Location: US
Posts: 483
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Cobalt
If I stomp on it, it just about dies and then finally comes into it. Anyway, i threw that 180 thermostat in and when it's warmed up she's pretty good. Still a slight bog when i quickly push the pedal but getting better.
__________________
72 with 69 grille and custom 73-87 stepside. BIG BLOCK 409, SM465, NP205, 3/4 axles slung under a 5" lift, 3"bodylift, 112" frame, and 35inch Pro Comp X-terrains... "BUILT NOT BOUGHT" Here's the site... |
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