Car struggles to start. need advice - Team Camaro Tech
Engine General Engine Discussion.

 
LinkBack Thread Tools Display Modes
post #1 of 11 (permalink) Old Mar 4th, 07, 08:04 AM Thread Starter
 
Join Date: Jul 2005
Posts: 67
Car struggles to start. need advice

When I start my car in the morning, it's in the garage and fires up perfectly. If I drive it at all.. even down the street and back, it doesnt want to start without a fight. I'll turn the car off, and try to start it again and it will just sit there and crank for a solid 5 seconds before A) it starts B) I stop and try cranking it again. Its annoying and embarrising sitting in a parking lot listening to my car crank over, and over, and over before finally starting. I heard this could be the starter solonoid or coolant temp sensor. Anyone else have a suggestion? Thanks!

1987 2.8 V6 MPFI - When I got the car, I changed the valve cover gaskets by which the injectors had to come out. Sometimes on startups I smell gas, I never had the car running until after I did the work. I dont know if injector seals could be part of the problem.
CamaroCT is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old Mar 4th, 07, 01:08 PM
Senior Tech
Dale
 
Join Date: Sep 2000
Location: Glendale,AZ.U.S.A.
Posts: 974
Re: Car struggles to start. need advice

If it cranks, the solenoid is not the problem.
I doubt it,s the coolant temp sensor, all it would do is add injector on time when the engine is cold.
What's the fuel pressure? How good is the spark.
Does it crank over well... fast, or does it struggle to crank?
Dale

68 Dana 302, 68 rs 327 daily driver/family car, 71 rs, track car/ driver, 68 firebird 400, 70 formula 400, 73 type LT, 98 TA, 2 goofy kids and an incredible wife.
dale68z is offline  
post #3 of 11 (permalink) Old Mar 4th, 07, 10:12 PM Thread Starter
 
Join Date: Jul 2005
Posts: 67
Re: Car struggles to start. need advice

"Does it crank over well... fast, or does it struggle to crank?"

When I crank it, sometimes it will crank fast.. in which case the car will usually start after 5 seconds. Other times it struggles (and doesnt sound right) and thats usually when I would stop after 5 seconds, and try cranking again. But when the car finally starts it's very sluggish to turn over completely. But once its on it idles and runs perfectly!

I put a brand new battery in last week, I took it back under warranty to rule out a dying battery.
CamaroCT is offline  
 
post #4 of 11 (permalink) Old Mar 5th, 07, 05:15 AM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 31,770
Garage
Re: Car struggles to start. need advice

Is the starter an OE, came with the engine?

The reason I ask, the solenoid may have some burnt spots on it. The solenoid pulls in a copper disc over two copper boltheads to apply power the the starter motor. These two contact spots become burnt due to arcing and a carbon buildup begins, read a high resistance, and a lower voltage is delivered the the motor and it turns over slowly.

I know it has been suggested the solenoid is not at fault, but if it has been in use for a long time, it could be a problem. Also, the same suggestion goes for the cables, both ends of them, not only the battery post, but the other end, whether it be the solenoid post for the positive battery cable, or the engine block for the negative cable. Both ends must be clean.

Both cables should be of a large enough cable size to not limit the amount of current to the starter. Most cables are 4 AWG, alittle small and less costly, but a 1 AWG is better. Most OE cables are 4 AWG.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden enjoy your next chapter.
Everett#2390 is offline  
post #5 of 11 (permalink) Old Mar 6th, 07, 10:59 AM Thread Starter
 
Join Date: Jul 2005
Posts: 67
Re: Car struggles to start. need advice

I think the starter is original. I jacked the car up one day to take a peek and it is very old. I dont know for sure, but original or not it has definitely been there along time.

Recently I was told the problem could be vacuum lines, but wouldnt that effect the car all the time? Im getting convinced its the starter/solonoid. But just incase, here is a list of things I have changed anyway:

Cap/Rotor
Wires
Plugs
Battery
Coolant Temp Sensor
Ign Control Module (free off parts car, tested and working)
Fuel Filter (incase of restriction)

I will take the starter off and clean up all the connectons and post back!
CamaroCT is offline  
post #6 of 11 (permalink) Old Mar 6th, 07, 11:14 AM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 31,770
Garage
Re: Car struggles to start. need advice

You don't have to take off the starter to clean the connections, just remove them from the terminals and take a hand held wire brush and make clean connection.

If you're really industrous, you might measure from the posts, not the terminal lugs, but the posts, i.e., solenoid post and battery post, with the DMM, and measure the voltage drop of the connection at either end and the cable itself. See you're measuring from post to post, and measuring the voltage of the connection of the lug to the post, as well as the cable wire itself. Any measurement of over 0.5 volts is a sign of the cable needing replacement.

Same goes for the ground wire also. Also, during cranking, battery voltage itself, post-to-post, should not fall below 10.5 volts.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden enjoy your next chapter.
Everett#2390 is offline  
post #7 of 11 (permalink) Old Mar 6th, 07, 04:27 PM
 
Join Date: Jan 2007
Posts: 1,163
Re: Car struggles to start. need advice

i dont know,but it sounds kinda like vapor lock to me...if memory serves, these have a filter can on the left side of the radiator, with a maf sensor right off of it...the maf sensor could be getting a poor reading from vapor lock, or could be bad...that was also a common problem with the 87(crappy maf)...i believe they went to map in 89 because of that...hope this helps...
kustomwerker is offline  
post #8 of 11 (permalink) Old Mar 6th, 07, 04:48 PM
 
Join Date: Apr 2006
Posts: 3
Re: Car struggles to start. need advice

Sounds like a timing issue to me, maybe too far advanced, causing it to be sluggish turning over..
schildk is offline  
post #9 of 11 (permalink) Old Mar 6th, 07, 06:05 PM
 
Join Date: Jan 2007
Posts: 1,163
Re: Car struggles to start. need advice

...

Last edited by kustomwerker; Mar 6th, 07 at 06:30 PM.
kustomwerker is offline  
post #10 of 11 (permalink) Old Mar 6th, 07, 09:31 PM
Senior Tech
Mike Petrovich
 
Join Date: Jul 2005
Location: Southern Illinois
Posts: 382
Re: Car struggles to start. need advice

My wife had the exact problem with her Subaru Impreza a few years ago. Started fine when cold, would frequently not start again after it had been shut off for a short time (still warm). An engine oil leak was contaminating a sensor (O2?). The engine got new seals and new sensor. The engine still leaks some oil, but no more of the engine not re-starting when "warm".

1968 327 sport coupe. Son of original owner.
mike p is offline  
post #11 of 11 (permalink) Old Apr 3rd, 07, 10:00 PM Thread Starter
 
Join Date: Jul 2005
Posts: 67
Re: Car struggles to start. need advice

Quick update. The car is out for the summer now. First thing in the morning it fires up instantly. and sometimes even when its warm. BUT ive noticed the car has had some hesitation and bogging during acceleration, and if im idling at a red like for more then a minute it almost seems like it wants to stall. Sometimes when i start give it gas because it stutters, then all i smell is gas and hear a backfire or two.

Im thinking my coil, or distributor could be bad. Seems like its not getting enough spark or something. Anyone have a suggestion?

Thanks
CamaroCT is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Factory Alarm will not allow me to start my car! sarah9046 Camaro Tech 9 Aug 29th, 13 06:21 AM
Most Important Car Accessory Ever? Must Read! ProdigyCustoms Sponsors 22 Nov 4th, 07 10:25 AM
What is a 67 RS/SS worth? bazkoon Camaro Tech 14 Jun 21st, 06 09:58 PM
Need some advice about inspecting a car... lookin Bench Racing 3 Nov 30th, 05 06:02 PM
July 30th Classic Car event & muscle car race at E- Town SUPERGONZO Bench Racing 0 Jul 31st, 05 12:21 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome