Question about 1997 GMC Sierra

1 Answer

Truck burns alot of fuel, hesitates all the time and high idle, just replaced timing gear and chain. dealer says maybe 1 tooth off on cam, replaced distributor w/cam sensor, crank position sensor, (no change), still has code of cmps and ckps are not corilating

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 4,669 Answers

If you have that code the distributor isn't set right. I don't suppose you have access to a scanner? That is the only way to get it set right.

Posted on Jul 10, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2005 dodge dakota slt, 4.7L 5sp auto, replaced engine at 214k with reman engine. immediately got rough idle at start up hot or cold. multiple misfire code/ bank 2 rich condition.


Has the valve timing been checked? This engine has three timing chains and a very specific procedure for setting the timing. I'm assuming the engine came with heads, cams, and timing chains installed, but builders can make mistakes.

May 19, 2017 | Dodge Dakota Cars & Trucks

1 Answer

Hesitation at low rpm


92
which G16 engine, 8valve 16v? black top or silver top
the 16v shouts, electronic EFI on top.

i bet you did classic error #1, never replacing the cam belt
it slips and you see spark timing way off and then retime the distrib.
now its double bad.(wrong)

No tools?
compression, over 150PSI ? wide open throttle time 4?
if that is good the belt has not slipped yet.
the open hood, look up, see that EPA sticker there with spark timing
in clear print, now set the timing using the timing freeze jumper.
to spec. using a real tool called a timing light.
btw, timing never drifts off, unless the belt is bad. or someone guessed.
that is what is first. and fueling is last.
The ECu controls timing all the time, setting it wrong is one of the
biggest lies you can input to any ECU on any car.
it assumes its correct and advances from there. so dont set it wrong.

tell 8v/16v engine and help is 100x better. i promise.

Tbelt
http://www.fixkick.com/t-belt/tbelt-index.html

Dizzy timing, 101
http://www.fixkick.com/IGN_timing/16v-procedure.html

the EGR must not leak or the engine will stall. sitting advance to hide
bad EGR is overthe top wrong.

the tbelt fast test ,
http://www.fixkick.com/t-belt/sneak-a-peek.html

the spark timing freeze jumper
http://www.fixkick.com/IGN_timing/IGN-FREEZE.HTML


bogging.
does it have full power up hills. WOT?
WOT power is 100% ok so........
is the hesitation only for an instant, then recovers.
yes, bad TPS.
or TPS idle switch bad or calibrated wrong.
or needs the 60k mile tuneup. spark /filters /belt (cam)

the bog page. links to all possible

http://www.fixkick.com/power-index.html


is the crank pulley 17mm head bolt , at 94ft/lbs
if not it will mangle the key way fast. end of life , crankshaft.
see TSB on that. on the tbelt pages.

Apr 01, 2014 | 1992 Geo Tracker

1 Answer

Cx 7 mazda cel codes P0011 and P0016


Causes may include:
  • Timing chain stretched, or timing belt skipped a tooth due to wear
  • Misalignment of timing belt/chain
  • Tone ring on crankshaft slipped/broken
  • Tone ring on camshaft slipped/broken
  • Bad crank sensor
  • Bad cam sensor
  • Damaged wiring to crank/cam sensor
  • Timing belt/chain tensioner damaged
  1. First, visually inspect the cam and crank sensors and their harnesses for damage. If you notice broken/frayed wires, repair and recheck.
  2. If you have access to a scope, check the cam and crank patterns. If a pattern is missing, suspect a bad sensor or a slipping tone ring. Remove the cam gear and the crankshaft harmonic balancer and inspect the tone rings for proper alignment and make sure they're not loose or damaged or that they haven't sheared the key that aligns them. If they are properly installed, replace the sensor.
  3. If the signal appears normal, then check the timing chain/belt for proper alignment. If it's misaligned, check for a damaged tensioner that may have allowed the chain/belt to slip a tooth or several teeth. Also check that the belt/chain isn't stretched. Repair and recheck

Jan 24, 2014 | Cars & Trucks

1 Answer

87 olds cutlass ciera has spark and fuel but won't start


Have you done a compression check? These engines have a tendency, after 80K miles to shear a tooth off the cam gear. What will happen then is that the crank will spin, but the cam won't. This will cause the cam sensor to APPEAR bad because there is no activity. The REAL problem is that since the cam don't turn, the valves don't open and close, thus no compression. The motor is non-interference so if it did break the cam gear (there is no timing chain), you only need to replace the gear, re-timing the crank/cam as you go. If this happened, you will not have even compression because some valves will stay open, some will stay closed.

Dec 11, 2013 | 1987 Oldsmobile Ciera

1 Answer

Code p0017p0300


P0017 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)

Symptoms of a P0017 will or may include: Malfunction Indicator Lamp (MIL) illumination The engine may run but with reduced performance The engine may crank but not start The engine may exhibit a rattle near the harmonic balancer indicating the tone ring is damaged The engine may start and run, but poorly Causes Causes may include: Timing chain stretched, or timing belt skipped a tooth due to wear Misalignment of timing belt/chain Tone ring on crankshaft slipped/broken Tone ring on camshaft slipped/broken Bad crank sensor Bad cam sensor Damaged wiring to crank/cam sensor Timing belt/chain tensioner damaged An improperly torqued crankshaft balancer A mis-built or mis-timed engine A loose or missing crankshaft balancer bolt The CMP actuator solenoid stuck open The CMP actuator stuck in a position other than 0 degrees

P0300 Random/Multiple Cylinder Misfire Detected

Symptoms may include: the engine may be harder to start the engine may stumble / stumble, and/or hesitate other symptoms may also be present Causes A code P0300 may mean that one or more of the following has happened: Faulty spark plugs or wires Faulty coil (pack) Faulty oxygen sensor(s) Faulty fuel injector(s) Burned exhaust valve Faulty catalytic converter(s) Stuck/blocked EGR valve / passages Faulty camshaft position sensor Defective computer

Oct 15, 2013 | GMC Envoy Cars & Trucks

1 Answer

1986 ford bronco 2. trying to figure out my problem. at times, when i press on the gas it does nothing,actually putters and theres a popping sound coming from passenger side under the hood. its like the...


It's one of two things. The plug wires are not on in the correct firing order or your timing chain has jumped a tooth on the crank or cam sprocket. You need to remove the distributor cap and make sure there is not a plug wire crossed somewhere by following the firing order in the direction of rotation on the distributor. If not hook a timing light up and see what the timing is running at. If the timing chain jumped a tooth you will need to replace the timing chain. Most of the old timing gear sets had a nylon cover over the teeth and it chips off and or the chain stretches and then the chain cam jump a tooth on the gear and throw the valve timing off enough to where you have the problem you describe. If you have very high mileage probably the timing chain. Also for $250.00 bucks I would start with the garage that did the tune up and tell them there is a problem. See what they say. Hopefully they are an honest garage. Good luck.

Sep 17, 2011 | Ford Bronco II Cars & Trucks

2 Answers

Cam & crank sensor code intermitten spark 2.4


are they the same engines? and i mean exactly the same? if the arent the same maybe check and look at the starter ring gear and count the teeth...also check the camshaft sprocket...is it different?

Oct 09, 2009 | Pontiac Sunfire Cars & Trucks

2 Answers

1998 chevy pickup won't start. Replaced fuel pump and cap and rotor. Has spark and is getting fuel.


How many miles are on the engine? Has the timing chain ever been replaced, if it hasn't there is a possibility that the timing chain has jumped a tooth on the cam gear which throws off the ignition timing and will keep it from starting but you will still have spark and fuel.

Aug 28, 2009 | 1998 Chevrolet K1500

1 Answer

Hesitation problem


Change fuel filter, and or plugs and plug wires. Also, if the timing mark is hopping back and forth when you shoot your light at it, the timing chain ahs jumped.

Jul 30, 2009 | 1995 Chevrolet Blazer

Not finding what you are looking for?
1997 GMC Sierra Logo

104 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

74896 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...