General Maintenance & Repairs Leaks | Squeaks | Clunks | Rattles | Grinds
Sponsored by:
Sponsored by: CARiD

Crank Position Sensor?

Thread Tools
 
Search this Thread
 
Old Jul 29, 2010 | 06:51 PM
  #1  
redbird555's Avatar
Thread Starter
TECH Veteran
iTrader: (14)
 
Joined: Mar 2009
Posts: 4,444
Likes: 9
From: Pompano Beach FL
Default Crank Position Sensor?

Ok guys just driving home and suddenly my tach goes to 0 engine was still running pulled into my driveway shut the car and and when I try to recrank it will crank and backfire and will eventually start. Could it be a bad cam sensor or crank sensor??
Reply
Old Jul 29, 2010 | 08:20 PM
  #2  
02SLPTransAm's Avatar
On The Tree
iTrader: (1)
 
Joined: Mar 2006
Posts: 112
Likes: 0
From: Missouri
Default

I think it is the camshaft position sensor. My car is doing the same thing right now. It actually kicked the service engine soon light and gave the camshaft sensor code. My car has no tachometer as well and doesn't like to start sometimes either. I bought the sensor, it is around $55 for AC Delco. The only thing that sucks is that it is located under the intake on the backside of the motor. I'm getting mine fixed next weekend, well at least replacing the sensor, I hope that is the only problem. Let me know what you find out. Good luck.
Reply
Old Jul 29, 2010 | 11:07 PM
  #3  
LS6427's Avatar
Banned
iTrader: (2)
 
Joined: May 2008
Posts: 11,289
Likes: 13
From: South Florida
Default

Originally Posted by redbird555
Ok guys just driving home and suddenly my tach goes to 0 engine was still running pulled into my driveway shut the car and and when I try to recrank it will crank and backfire and will eventually start. Could it be a bad cam sensor or crank sensor??
If it turns out to be the cam sensor, I'm in Lauderdale and I have one for ya brand new in the AC Delco box. $50.00.

Bought it new at Phil Smith Chevrolet, popped it in and let it sit there till my new PCM got delivered. Found out my problems were a loose ground wire to the PCM/Engine block. I never even plugged the sensor up or bolted it down. I just took it out and popped my old one back in. I was gonna return it but just haven't yet. Paid over $100.00 for it.

I leave tomorrow morning at about 9:30am for the weekend, I won't be back in Lauderdale till Monday.

.
Reply
Old Jul 30, 2010 | 03:06 AM
  #4  
redbird555's Avatar
Thread Starter
TECH Veteran
iTrader: (14)
 
Joined: Mar 2009
Posts: 4,444
Likes: 9
From: Pompano Beach FL
Default

It just threw the check engine light finally so I'll see what it says but I'm willing to bet cam sensor also. The tach just went out in the middle of driving so it sounds like the sensor just went bad. I'm actually leaving town today also so I'll have to give you a pm mon to meet up thanks.
Reply
Old Jul 30, 2010 | 10:11 AM
  #5  
SOMbitch's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Sep 2007
Posts: 6,881
Likes: 3
Default

It is the cam sensor since your tach is out. That is where the tach gets its signal from.....
Reply
Old Jul 30, 2010 | 09:26 PM
  #6  
383camaroz28's Avatar
TECH Resident
15 Year Member
iTrader: (22)
 
Joined: Jul 2007
Posts: 894
Likes: 0
From: rhode island
Default

i changed my sensor an still no tach, i pulled my motor out an painted the bay. Could it be a b ad ground im also throwing a code idk wat one yet.
Reply




All times are GMT -5. The time now is 01:06 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE