Question about 1992 GMC Sonoma

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Need to know how to set linkage on 1992 GMC Sonoma

I can push the gas pedal down to the floor at 40 and cannot go any faster, I just had the valve cover seals replaced and the valves set. It starts beautifully and does not "miss" when idling. The engine is in great shape and well cared for. I replaced all the brake lines,and also put a new gas tank,seals,and lines on.I have given it a new oil and antifreeze change also but I still have no power

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  • GMC Master
  • 601 Answers

With the car not running, get someone to push the pedal all the way down and check to see if the throttle valve is fully open.
If it is, chances are the engine is being starved of fuel (plugged fuel filter, plugged or undersized supply line, faulty pump, faulty regulator, etc.) - check the fuel pressure at the engine.
If it isn't, there is probably no cable adjustment and you will have to replace the linkage cable.

Posted on Aug 03, 2017

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6ya6ya
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Posted on Jan 02, 2017

  • 1118 Answers

SOURCE: 1994 GMC Jimmy hard to start and runs rough when first started

did you do a fuel pressure test? if you havent do it its cheep an at least you can elimanate that. if thats not an issue, then there is only two other things crank sensor, and if there is one cam sensor.

Posted on Feb 02, 2009

emissionwiz
  • 75822 Answers

SOURCE: 1998 GMC Sonoma threw code P1133 02S 1/1

P1133 - Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
I would have the repair shop see if they either damaged or left disconnected the oxygen sensor for engine cylinder bank one upstream sensor, this sensor would have been disconnected if the oil pan was removed.

Posted on Apr 20, 2009

Molson02536
  • 3854 Answers

SOURCE: I need to see the "how to's" in replacing the one way check valves on my 2001 gmc sonoma 4.3

On the 2001 gmc jimmy 4.3L v6 engine there are two air pump check valves: there's a pipe (about 1" diameter) that comes off each of the exhaust manifolds. the check valves are screwed onto those pipes. then a rubber hose (about 1.25" outside diameter) is clamped to the front of each check valve and connects to the air pump, which is hidden behind the vehicles grille in front of the radiator. typically, if you need to replace these (the life expectancy is about 3-4 years), it starts a chain of events that might be as follows: during the wintertime, water from the exhaust leaks through the worn out one-way check valves, and ends up in the air pump. the water freezes, and the ice jams the air pump, which may or may not ruin the air pump, but which usually blows the air pump fuse, which is impossible to find if you're rummaging around the passenger compartment fuse box or the under-hood fuse and relay box. it ain't there! so if you're looking under the hood leaning up against the front bumper, slide to your left around the passenger side headlight. now you should be looking at the battery, leaning up against the passenger side fender. look down between the battery and the fender. you have to push a few things out of the way, but there you will find a green 30 amp blade fuse (about 1" x 1" fuse--and $2.99 at autozone). this blown fuse should have triggered the check engine light and a DTC (diagnostic trouble code) of p0410 (secondary air injection system). for that vehicle there is a TSB (technical service bulletin) put out by gm (bulletin # 04-06-04-015; march 2004). if you want to print out some literature about all that i've mentioned just surf on over to http://www.obd-codes.com/p0410 for more links and documentation. my credentials: self-proclaimed auto mechanic for 26 years (sorry, no ase certification yet [but still trying to find time to study for the tests]) and college dropout (after 3 years of electrical engineering)--so, in other words, don't believe a word i say; just go to that website and get it straight from the horse's... 
Good luck and hope this helps. I know you have a Sonoma but we have the same platform. I am thinking of buying a set of headers without the Air injection system and having the jimmy dyno tuned again to eliminate the service engine light and recalibrate the ECM to eliminate the air injection pump. 

Posted on May 25, 2009

savindude
  • 175 Answers

SOURCE: how do you change an idle control valve on a 2003 gmc envoy

The idle air control valve will be located at the top of the engine on top of the intake manifold. If you hold the new valve and then look at the manifold you should see where it goes. I'm guessing it'll have 2 screws and 1 electrical connector. The one's that I've replaced were very easy to get to and replace. Not sure on your vehicle. The screws may be phillips or torx type heads. Good luck, if this helps please rate this. Thanks.

Posted on Jul 04, 2009

litoshop
  • 298 Answers

SOURCE: brake pedal goes down to far abs brakes

Hi I'm litoshop if you bled the system and get no results then your brake pump needs to be replaced now before replacing make sure your pads are installed correctly because if there not this to can cause this problem good luck. if this information has been useful please let us know thank you.

Posted on Aug 11, 2009

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1 Answer

The gas pedal is sticking on its own


First question, does your truck have cruise control? If so, find the cable that goes from the cruise module to the throttle body, and disconnect the cable and see if that solves your problem. Next thing is inspect the throttle cable, from the gas pedal through the firewall to the throttle body, and look for any kinks, anything contacting the cable or linkage.

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i would check fuel pressure key on engine off should be around 40 psi if thats good it sounds like bad IAC valve idle air control valve

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I have a 1992 GMC Sonoma 4.3L, and once in awhile, when I go to take off, the truck will start to sputter and die. It starts back up after I actuallu floor the gas pedel, then the idle is really high?...


It is possible and also a cheap easy place to start. I would also test your fuel pump by perfoming a fuel pressure test by using a fuel pressure gauge. When was the last time you tuned up your truck? You may also have an EGR valve that may be sticking open. You may have other sensors that may be causing your problem but you will need to be plugged into a scanner to help troubleshoot those.

May 02, 2011 | 1992 GMC Sonoma

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I need the fireing order for a 2000 sonoma 4.3 vortec and when i put the gas pedal to the floor it bogs down i just did a complete tune up and it still does it and no engine light is on


2000 GMC S15/T15 Sonoma P/U 4.3 liter V-6 VIN "X"
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Feb 25, 2011 | GMC Sonoma Cars & Trucks

1 Answer

Wont shift out of 2nd gear but used to if you would let of the accelerator and let it idle down then it would shift but wont shift at all now


Check cable from throttle linkage to transmission that operates throttle valve on transmission. Not uncommon for the linkage at transmission to be pulled all the way when gas pedal pushed for quick acceleration, or passing, and stay stuck there. Engine off, wheels blocked for safety and/or park brake on, have someone depress gas pedal all the way to the floor slowly, while you watch linkage that cable is attached to on transmission. Then as they release pedal, it should move back in opposite direction. Spray it well, with WD-40 or similar lube and get it moving by hand if necessary to make sure it is fully returning. That may be all it is.

Dec 31, 2009 | 2006 Dodge Ram 2500

1 Answer

1989 Bronco 5.8 the transmission shift points RPM too high


One of the first things I'd do is check the throttle valve cable that runs from your throttle linkage at side of throttle body, and goes from there down to transmission, and make sure it's moving free and releasing as well when off the gas . Take some penetrating spray like WD-40, and get it moving free, and make sure you look close at linkage where cable attaches at transmission, and spray it well, and get it moving good. Apply emergency brake, and block wheels to be safe, and watch what cable does, as you have someone push gas pedal down to floor slowly and then let up on it. That cable should pull a linkage one way when gas pedal pushed to floor, then return when pedal is let up. After they let it up, see if you can move linkage back any further by hand then it came back on its own, just to see if it's hanging up slightly, which would cause your later shift problem. Keep applying WD-40 and working it until your sure it's as free as it will get, then wipe WD-40 off as much as you can, and apply some "white lithium" spray grease or similar, to help protect it from seizing again. Once that cable and linkages are moving good and free, you will probably notice shifting problem is gone, or at least better, but if not, there are adjustment points on that cable if you look closely. If you do need to adjust, and can't figure it out, get back to us and we'll help. Good Luck.

Nov 29, 2009 | 1989 Ford Bronco

2 Answers

Power brakes not working


No such thing as vacuum lines to the master cylinder. You do have a vacuum line on the brake booster (power assist). When you step on the pedal do you hear a whoosing sound down by your pedal. This is a leaking Booster. Needs replacement.

When you step on the brake does the engine rpm change. This is a leaking check valve (one way air valve).

Jul 17, 2009 | 1996 GMC Sonoma

2 Answers

Brake lights stay on till the pedal is pulled back not the switch I replaced it


Two things come to mind:

1) Pivot bushing on the pedal swing arm might be bad.

2) It could be the brake master cylinder is sticking/binding and not allowing it to return all the way. The MC connecting rod may need adjusting, too.

May 03, 2009 | 1992 GMC Yukon

1 Answer

1992 GMC Sonoma - 4.3l cannot start after stall and knocking.


Sounds like an engine sensor, EGR valve or O2 sensor has failed. First thing to do is to look at the engine trouble codes to pin down the failure. You can usually borrow an OBD1 code checker from your local parts store.

Mar 11, 2017 | 1992 GMC Sonoma

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