Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Chevy

1ve got a 96 z28 water pump and optispark were replaced 5

Customer Question
yrs ago ran great .parked...
1ve got a 96 z28 water pump and optispark were replaced 5 yrs ago ran great .parked it for awhile cuz pwr windows were bad and ac went out at same time id start from time to time then one day it wouldnt .just changed out fuel pump and filter and coil power going to coil but not coming out power to distributor but no spark ive had the vats bypass gimmick done pretty much stumped i can build a small block ole school chevy blind fold but this one with all these electrical gimmicks and sensors got me in a bad way
JA: Does the engine turn over? How old is the battery?
Customer: turns over great , battery 650 crankin amp yr old
JA: Are you hoping to fix this yourself?
Customer: yes
JA: Great! What have you tried so far?
Customer: fuel pump replaced coil replaced fuel filter cvopuld not get a decent reading on fuel pressue but when crankin hit shrader valve and gas shooting everywhere
JA: Is there anything else the Chevy Mechanic should be aware of about your Chevy?
Customer: vats has been by passed have power to coil but not coming out
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chevy Mechanic about your situation and then connect you two.
Submitted: 1 year ago.Category: Chevy
Show More
Show Less
Ask Your Own Chevy Question
Answered in 52 minutes by:
6/3/2016
Chevy Mechanic: Chris (aka-Moose), Technician replied 1 year ago
Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Chevy
Satisfied Customers: 49,120
Experience: 16 years of experience
Verified

Welcome, I'm Chris (aka Moose). I normally log in after 3 pm central everyday. Please let me know exactly what you need from this conversation so I can provide EXCELLENT 5 STAR service.

  1. Disconnect the distributor 4-wire connector, then turn the ignition on. On the PCM side, check for a 5-volt reference on both the low resolution (Red/Black) and high resolution (Purple/White) signal wires.
  2. Verify that there is battery voltage on the Red wire and a ground on the Pink/Black.
  3. Plug the connector back in. Check for good square patterns from both the low and high resolution circuits while cranking the engine. If a lab scope is not available, check for about 1 volt DC during cranking on the low resolution signal and about 2.5 volts DC during cranking on the high resolution signal.
  4. If the signals are erratic or 0 or 5 volts, check for bad, chafed wiring to the distributor.
  5. If all OK, replace the distributor.

-------------------------------------------------------------------------------------

At the top of your screen you will see 1-5 stars and a green submit button. When your ready please make sure to pick a rating. Rating is the only way I get compensated for helping. Don't worry about a follow up later if needed, they are free and I welcome them. Ask me about a phone call if you prefer that service.

Thanks Chris

Ask Your Own Chevy Question
Chevy Mechanic: Chris (aka-Moose), Technician replied 1 year ago

Hello again Chris here,

I am contacting you because the post has not been closed or rated. We have 7 days to get a post rated before it times out. When a post times out, that means its no longer on my active list (if you reply I never know it.) You have already paid the fees to get this question answered, but it appears your not pleased, or need more help.

Let me help some more. Is there anything else you feel I could offer so you would be pleased with my help. I have the option to call you if that would be better.

Thanks Chris

Ask Your Own Chevy Question
Ask Chris (aka-Moose) Your Own Question
Chris (aka-Moose)
Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Chevy
Satisfied Customers: 49,120
49,120 Satisfied Customers
Experience: 16 years of experience

Chris (aka-Moose) is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.

Todd LRochester NY

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

Chevy Technician

15,249 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,196 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,847 satisfied customers

Have owned a repair shop for 25 yrs.

Dave Nova

Dave Nova

Chevrolet Technician

7,092 satisfied customers

ASE Master Certification. GM World Class Certification

John

John

Master A.S.E Automotive technician

4,071 satisfied customers

A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician

Don - Mo Lurch

Don - Mo Lurch

Auto Mech / Electronics

2,900 satisfied customers

Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

Ron Z.

Ron Z.

- Chevy Tech -

2,682 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

Related Chevy Questions
My equinox is running hot, I've change the water pump,
my equinox is running hot, I've change the water pump, thermostat. system has been bleed, air pockets remover, by certified tech. now it running hot while just idling, but it doesn't stay hot goes bac… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,009 satisfied customers
How much Labor to remove and replace water pump 2004
how much Labor to remove and replace water pump 2004 chevrolet express 3500 6 liter with ac… read more
Ron Z.
Ron Z.
- Chevy Tech -
Vocational, Technical or Trade Scho
2,682 satisfied customers
Ron. I have 06 Chevy impala SS 5.3 I had the water pump
Hello Ron. I have 06 Chevy impala SS 5.3 I had the water pump replaced 1 yr ago due to leaking. Noticed a couple weeks ago my temperature gauge rising while city driving I turned the heat on immediate… read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
On my Chevy 350 I have a electric water pump. There is an
On my Chevy 350 I have a electric water pump. There is an extra hole I believe a water bypass hole that coolant is leaking out of. I'm guessing I have to block it? What thread and bolt size is it or i… read more
Joecamel90
Joecamel90
Technician
Associate Degree
24 satisfied customers
My 92 Chevy pickup truck runs hot change radiator water pump
My 92 Chevy pickup truck runs hot change radiator water pump thermostat up and lower radiator hose and still runs hot … read more
rpmdiag
rpmdiag
High school
7,114 satisfied customers
I need the labor cost on a 99 6.5 water pump replacement, No
I need the labor cost on a 99 6.5 water pump replacement … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
I have replaced, the water pump, thermostat, and radiator on
i have replaced, the water pump, thermostat, and radiator on my 2002 cavalier, but it is still overheating. what could be the problem? … read more
roy
roy
Associate Degree
3 satisfied customers
Im not sure how to access water pump and the current tool
Im not sure how to access water pump and the current tool that i rented from oreillys doesnt clear the metal plate in front of the intake cam is there a different tool required? … read more
Tim&#039;s Auto Repair
Tim's Auto Repair
mechanic
High School or GED
8,847 satisfied customers
I have a 2003 Tahoe. I've replaced the water pump,
I have a 2003 Tahoe. I've replaced the water pump, thermostat. the tuck runs about 190 with ac on or off, until its over 90 degrees out. then running the ac the truck will get hot. turn the ac off and… read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
2004 Duramax LLY Losing coolant. Replaced the water pump.
2004 Duramax LLY Losing coolant. Replaced the water pump. Every 700miles gets low coolant. Have to add. No visible leaks. No mix in the oil. Had mechanic do pressure test. All came back good. Truck ru… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,249 satisfied customers
94 chevy 5.7, someone took water pump and fan off. Trying to
94 chevy 5.7, someone took water pump and fan off. Trying to put back together. They put an aftermarket. Fan with spacer. As i look at the front of motor fan turns counter clockwise, however fan is ma… read more
Jared D
Jared D
Shop Supervisor
Bachelor\u0027s
3 satisfied customers
Its over heating. Changed thermostat and water pump. Also a
Its over heating. Changed thermostat and water pump. Also a combustion test … read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,196 satisfied customers
Changed water pump on corvette. started and ran to operating
changed water pump on corvette. started and ran to operating temp. car stalled and will not re start. … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
05 Tahoe changed water pump and coolant temp. sensor but its
05 Tahoe changed water pump and coolant temp. sensor but its still running hot? … read more
Jerry Newton
Jerry Newton
Vocational, Technical or Trade Scho
2,066 satisfied customers
It overheated. I ended up replacing the water pump and the
It overheated. I ended up replacing the water pump and the thermostat now I get a P00b7 code … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
95 c1500 replaced water pump and now is overheating,,wasn't
95 c1500 replaced water pump and now is overheating,,wasn't before replacement … read more
mike switzer
mike switzer
686 satisfied customers
My 2003 Chevy Malibu is overheating. Thermostat, water pump,
My 2003 Chevy Malibu is overheating. Thermostat, water pump, and reservoir tank have all been replaced. hoses have been removed and cleaned out. … read more
roy
roy
Associate Degree
3 satisfied customers
Changed all the belts new water pump and alternator and it
changed all the belts new water pump and alternator and it still squealing can you help … read more
roy
roy
Associate Degree
3 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x