my 2004 Z71 journal

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

OP
OP
H

HACK BLOCK

Full Access Member
Joined
Aug 18, 2017
Posts
541
Reaction score
179
Location
NYC
Hmmm... Maybe the stepper then. Usually the sender is dead shorted and returning a full 5v, for a needle pegged at 80. Or else locked open/broken wire, for a return of 0v and a needle at 0. I suppose you never know with a sensor... Could be intermittent. If it were me, I'd change it before you yank the cluster so you know whether or not you need to mess with the gauge. Just my .02

if I pull the cluster I'm changing all motors anyway but it's sound like the sensor isn't a big deal to change so I'll do that
 

cmc76

Full Access Member
Joined
Sep 5, 2014
Posts
685
Reaction score
314
Good place to start. Its cheap. You'll need a swivel and I think an oddball deep well socket. Ill check the size in the morning. 15 minute job tops.
 

Chubbs

Full Access Member
Joined
Jun 24, 2017
Posts
636
Reaction score
396
Good place to start. Its cheap. You'll need a swivel and I think an oddball deep well socket. Ill check the size in the morning. 15 minute job tops.

15-min with the perfect combination of socket and extensions.

I went the advised route using the Lisle socket that oreilly auto parts had on the shelf for this specific application; just picked it up same time as the OPS. Then I exchanged it for something else on $10-store credit next time I needed to go in & buy something. I can't say wether or not any of my standard sockets would've fit in that location but 1/2" drive setup & that slim socket sure made it painless to do this R & R absolutely blind.
 
Last edited:

HiHoeSilver

Away!
Joined
Feb 28, 2017
Posts
10,918
Reaction score
14,578
Location
Chicago
Good place to start. Its cheap. You'll need a swivel and I think an oddball deep well socket. Ill check the size in the morning. 15 minute job tops.

It's 1 1/16" deepwell. Use a 8"ish extension and a u joint. Done in 15 minutes. Guys talk about some special thin wall socket..... No need.
 

corvette744

2004 Z-71
Joined
Jul 11, 2017
Posts
739
Reaction score
774
Location
Northern illinois
after months of looking I finally bought a tahoe, 2004 Z71 with 110k. not in the color I wanted but it was only $2500. after a couple days of driving I've noticed a bunch of small things about it. because this is my first ever GM vehicle I have tons of dumb questions and concerns. so any help would be much appreciated.

has a check engine light on for p0171 and p0174 and abs light that only comes. on when the truck is moving

cluster speedo sometimes works and oil doesn't work at all. 1 led appears to be out and PRND321 is dim.

the radio makes a noise like if I'm inserting a cd and it's trying to read it. this happens every time I start the car and it happens for about 20 seconds. also the little cd light is blinking all the time

when I turn on the rear air, it makes a loud noise like if the fan it no good.

the parking brake doesn't do a dam thing. it has no resistance when stepped on and I have to pull it up by hand.

steering wheel make a noise like if something is broken when fully locked, has about a 2-3 inches of play in it, only the right hand buttons work and none light up.

has hard start problems after adding gas.

the driver side door is sagging. it looks like the hinges are loose. I have to lift the door to close it. doesn't lock with the remote or using the switch on the door. heated seats works when it wants and only the back gets hot.

gas cover is loose and swings open whenever it wants.

other than those things I noticed I'm. still gonna change all the fluids and plugs/wires and filters ect. I plan on keeping this truck till the wheels fall off. it will be primarily a family vehicle for probably the next 3-6 months then will be my work truck
These small things are going to add up real quick-thats why you paid 2500.I would get it saftey checked you said the abs light is on and something sounds broken in the steering wheel.Also hard to start after putting fuel in it.Those are some issues i would get resolved before i stuck my family in her.
 
OP
OP
H

HACK BLOCK

Full Access Member
Joined
Aug 18, 2017
Posts
541
Reaction score
179
Location
NYC
just had my p0171 and p0174 codes check out and was told I have 2 leaking injectors on each side and I can't replace just the o-rings that I need new injectors all together
 

Tonyrodz

Resident Resident
Joined
Feb 16, 2012
Posts
33,185
Reaction score
51,399
Location
Central Jersey
just had my p0171 and p0174 codes check out and was told I have 2 leaking injectors on each side and I can't replace just the o-rings that I need new injectors all together
Screenshot_20180103-152821.png
 
OP
OP
H

HACK BLOCK

Full Access Member
Joined
Aug 18, 2017
Posts
541
Reaction score
179
Location
NYC
does the brand matter? or should I go with ac Delco or delphi
 
OP
OP
H

HACK BLOCK

Full Access Member
Joined
Aug 18, 2017
Posts
541
Reaction score
179
Location
NYC
I' Not really sure. I'd think both are good brands. I'd check out the reviews.
the pic u posted was from a Chinese company selling on Amazon and has no reviews. that's what I meant
 
OP
OP
H

HACK BLOCK

Full Access Member
Joined
Aug 18, 2017
Posts
541
Reaction score
179
Location
NYC
yesterday I changed the evap purge valve cause I was getting hard starts after refueling and my chest k engine light for p0171 and p0174 went away. I only did about 20 miles but so far so good. I also found all 8 Delphi injectors for $21 each but if this light stays off I'm gonna return it and get my money back. my next move is to figure out my ****** Mpg so I'm gonna change the oil, plugs and wires, and a new intake and see what happens. right now I only did about 25 miles and I already finished a 1/4 tank
 

Tonyrodz

Resident Resident
Joined
Feb 16, 2012
Posts
33,185
Reaction score
51,399
Location
Central Jersey
yesterday I changed the evap purge valve cause I was getting hard starts after refueling and my chest k engine light for p0171 and p0174 went away. I only did about 20 miles but so far so good. I also found all 8 Delphi injectors for $21 each but if this light stays off I'm gonna return it and get my money back. my next move is to figure out my ****** Mpg so I'm gonna change the oil, plugs and wires, and a new intake and see what happens. right now I only did about 25 miles and I already finished a 1/4 tank
Where'd you find the injectors, what brand are they?
 

mizzouguy

Full Access Member
Joined
Apr 7, 2015
Posts
523
Reaction score
153
Location
Lake of the Ozarks, MO
Pull codes for abs, probably front hub assembly. If the speed sensor in the trans was bad you'ld have no speedo.
I also vote oil pressure sending unit change out first.
Cd is stuck in the head unit, try pulling the fuse to reset it. Sometimes it'll spit it out then.
Rear hvac blower motor is probably bad or has something stuck in it. Pull interior pass quarter panel cover to access.
Parking brake cable....would need to see if it is still hooked up. If it is, id pull the rear brakes apart and check shoes and adjust. Then check pedal for broken return spring. Even when working properly, the pedal will have little resistance but should feel some...
The rest of the stuff idc. Steering wheel controls/clicking sounds like bad clockspring or wiring. Would have to pull steering wheel to check. 2-3 inches of play could be a loose gear box. They have some manual adjustment that can be tightened. If its rack and pinion could be the rack...
 
OP
OP
H

HACK BLOCK

Full Access Member
Joined
Aug 18, 2017
Posts
541
Reaction score
179
Location
NYC
I dont think those will work with a t motor you better check your vin to make sure.I looked thru ebay ton of them their but when you put in your vehicle not compatible.
I got the part number off of rockauto and ebay did say it fit my truck so I don't know. but as of right now I don't think I'm gonna install them. reason why I bought them was because a shop told me my injectors were causing my p0171 and p0174 codes but after I changed my evap purge valve the codes went away
 

corvette744

2004 Z-71
Joined
Jul 11, 2017
Posts
739
Reaction score
774
Location
Northern illinois
I got the part number off of rockauto and ebay did say it fit my truck so I don't know. but as of right now I don't think I'm gonna install them. reason why I bought them was because a shop told me my injectors were causing my p0171 and p0174 codes but after I changed my evap purge valve the codes went away
Cool i cant believe the evap fixed both codes and the hard start after filling with gas-good job on that one.You might want to find a new shop for diagnosing your tahoe.You will save a ton of money doing it yourself and it sounds like you can do that keep it up.
 

Forum statistics

Threads
137,750
Posts
1,991,162
Members
102,739
Latest member
D Rollins
Back
Top