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1997 gmc Sierra I got some bad gas, and now I have a lot of lifter noise on acceleration

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  • Cars & Trucks Master
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If you have used inferior fuel then what you have is not lifter noise but detonation from incorrect air/fuel ratio. Ignition from compression rather than from spark. Clean the oxygen sensor in white vinegar and give it a go.. Completely fill the tank with good fuel to dilute the bad fuel as much as possible.

Posted on Jul 21, 2013

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Posted on Jan 02, 2017

  • 59 Answers

SOURCE: 1997 GMC Sierra Ignition Switch Replacement

take off the cover on the top and bottom of the steering column just behind the wheel. pop the tilt lever out simply just by grabbing it and give it a good tug. then once you have the new switch and you get in there your going to need an inverted torx socket to remove the small bolts that hold the switch to the column. do not move the gear on the new switch make sure it lines up exactly as the old one did!!!!!!!!!!!!

Posted on Mar 15, 2009

csmock132
  • 4669 Answers

SOURCE: 1997 gmc sierra 1500 5.7 vortec got spark got fuel

You said you have fuel pressure but what is it? It has to be 55 psi or it won't even try.

Posted on Mar 15, 2009

  • 10 Answers

SOURCE: fuel pump fuse located on 1997 gmc sierra

The fuse is actually a Relay Switch and its located in the Fuse Relay Center on the driverside of the engine compartment. The Black Box is labled Fuse Relay Center, the diagram on the cap displays which Relay is the Fuel Pump relay...the Relay switch is usually $8-$15 depending on where you shop

Posted on Jul 28, 2009

  • 12104 Answers

SOURCE: 1997 Gmc Sierra fuel pump relay has no power

check fuse and fuse panel connections

Posted on Oct 29, 2009

wilsodfarm
  • 986 Answers

SOURCE: Torque Specs for Head Bolts on 1997 GMC Sierra V8 5.0 Vortec?

.0L Torque Specs Belhousing to engine bolts 28-38 ft/lbs Camshaft sprocket bolt 40-45 ft/lbs Camshaft thrust plate to engine block bolts 108-144 in/lbs Crankshaft pulley to vibration damper bolts 35-50 ft/lbs Cylinder head bolts -1979-1992 --Step 1 55-65 ft/lbs --Step 2 65-72 ft/lbs -1993-up --Step 1 25-35 ft/lbs --Step 2 45-55 ft/lbs --Step 3 75-85 ft/lbs Differential shaft lock bolt 15-30 ft/lbs Driveshaft U-joint to pinion flange bolts 70-95 ft/lbs Exhaust manifold bolts 26-32 ft/lbs Flywheel mounting bolts 75-85 ft/lbs Front engine mount nuts 72-98 ft/lbs Intake manifold to head bolts --Step 1 96 in/lbs --Step 2 16ft/lbs --Step 3 23-25 ft/lbs Intake manifold (upper intake to lower) 12-18 ft/lbs Oil filter insert to engine block adapter bolt 20-30 ft/lbs Oil pan mounting bolts -1979 --Step 1 (Large bolts) 11-13 ft/lbs --Step 1 (Short bolts) 7-9 ft/lbs --Step 2 (Large Bolts) 15-17 ft/lbs --Step 2 (Short Bolts) 10-12 ft/lbs -1980 to 1987 9-11 ft/lbs -1988 to 1993 6-9 ft/lbs -1994-up 110-144 in/lbs Oil pickup tube to main bearing cap nut 22-32 ft/lbs Oil pickup tube to oil pump bolts -1979 to 1987 10-15 ft/lbs -1988-up 12-18 ft/lbs Oil pump mounting bolts 22-32 ft/lbs Pinion bearing preload 8-14 in/lbs Pressure plate to flywheel bolts 12-24 ft/lbs Rocker arm fulcrm bolts 18-25 ft/lbs Spark plugs 7-14 ft/lbs Timing chain cover bolts 12-18 ft/lbs Vibration damper to crackshaft bolt 110-130 ft/lbs Wheel lug nuts 85-105 ft/lbs

Posted on Mar 16, 2010

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1 Answer

My gmc k2500 p/u has a clicking noise when i accelerate and bogs down


sounds like your engine is TIRED ! worn out, lifters tapping, loss of power, valve train worn, tired, NEW HEADS, LIFTERS, CAM, would help this out a lot, had to do this to my 1988 gmc 2500, before I did could not climb a hill, and don't forget the NEW TIMING CHAIN SET. mine was also overheating, its because the engine was working tooooo hard, and not that good ! just thought I'd pass it on, JEG'S.COM or SUMMIT RACING check them out, good prices for your truck ! if you don't think this is your problem, them move on , but what if ????

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I have a 2003 gmc Sierra half ton 4.8 liter that has a knock that sounds like lifters


There is,If you do the lifter you could be after something else,The noise sounds like a collapsed lifter,A collapse lifter can cause a misfire,The 2003 GMC sierra or I should say the 4.8 engines suffer from a cut O-ring between the oil pump screen and the oil pump causing oil areation,resulting in lifter noise,The noise will be present a cold start and then diminish at warm up.12_3_2012_8_08_44_am.gif

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1 Answer

My 2000 GMC 2500 Sierra 2500 has lifter "clacking noises" and I want to change the lifters. How do I go about it?


Probably not lifters. Huge well documented issues with piston skirt slap in the vortec engines when cold. Pistons made at one location and blocks at another. Manufacturer will not make any repairs. So don't go there, you'll be wasting your time. Lots of documentations from both manufacture and owners of no damage noted after high mileage. Options are to live with it, let it warm first before driving or rebuild engine- bore one size and replace pistons with a better one with a coating on walls. Did one for a gentleman with 59,000 miles 3 years ago and he's totally happy. He could not live with the noise it was making. My Wifes 2000 Yukon has same problem. If you have a diesel.. not my area.
Good luck

google: vortec piston slap, read , get mad, welcome to the club!

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07 GMC sierra 111,000 miles service regularly have whats sounds like lifter noise just started oil level good, could it be time for a tune up?


When you replace spark plug look at the gap is it worn(just compare it to a new on)now is this noise at idle or are you acclerating at idle its a lifter noise.If its at acceleration then time for spark plugs fuel filter.Remeber to use the proper weight on it.Dont listen to someone that says you can use a thicker oil. Make sure the oil you use has not been strip of zinc which API has removed and allot of premature engine failure are occuring. Use mobil stay away from penzoil they have no anti wear additives engine are wearing out quickly.

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1990 GMC Sierra lifters knocking. Oil pressure


I doubt it....It could be a totally worn out engine.

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loose connections and starter relay in power distribution box under hood. Make sure you dont have a loose or poor connection on a ground or power wire from battery.

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2000 GMC SIERRA 2500 LIFTER NOISE


Try a cup of tranny fluid, Dextron, or whatever, in the crankcase. Or there are lots of lifter products at your local part store. I would certainly try that first. I assume your oil has been changed recently, and the level is good. You don't have to pull the heads, but you do have to remove the intake, and valve covers.

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