Serious starting problems...

patrick3002 · Post by **patrick3002** » Tue Jan 24, 2006 10:11 pm

Hey guys, i was wonder if anyone could help me with my starting problems. I've taken it into the shop twice for this problem and its still a problem! Their excuse was that they couldn't get it to re-inact what i was describing to them. But heres my problem: After my car has been running/sitting idle for awhile say an hour or so (in the city) after its been running or driven for awhile it seems to have serious starting problems. It wil just crank and crank and crank then most of the time it will finally start, it seems like its getting worse though. I have new spark plugs, and spark plug wires, new air filter, new battery, new fuel filter, and my starter is good. I've had a few people suggest having the fuel pump looked at, but i thought i'd get some more advise before i take it back into these people. If anyone can help me out with this i would greatly appreciate it.

My car: 1991 Pontiac LeMans LE 4-door 1.6L 4Cyc

In advance, thanks!

MMamdouh · Post by **MMamdouh** » Tue Jan 24, 2006 10:26 pm

sounds you got leaky injectors.

MMamdouh

MMamdouh · Post by **MMamdouh** » Tue Jan 24, 2006 10:42 pm

does this sounds familiar??
http://www.daewootech.com/forum/viewtopic.php?t=2320

MMamdouh

patrick3002 · Post by **patrick3002** » Tue Jan 24, 2006 10:43 pm

Thanks for the help, i'll have them take a look at those also.

If anyone else has any ideas, please dont hesitate to post them.

Thanks!

GsiTurbo · Post by **GsiTurbo** » Wed Jan 25, 2006 3:13 am

I run into similar problem with my Lemans a little while ago. Doing the following fixed the problem, after replacing the obvious (plugs, wires, cap/rotor etc)

- changed the CTS (coolant temperature sensor)
- installed new vacuum lines

Also, bad IAC and/or MAP will cause similar.

As it turns out, the ECM thought at all times the car is running cold, as a result it was over-fueling the motor and flooding it.

Hope this helps.

Tom

KIMO · Post by **KIMO** » Thu Jan 26, 2006 9:45 am

why change CTS if the gague inside the car work in good condition

MMamdouh · Post by **MMamdouh** » Thu Jan 26, 2006 11:30 am

no idea... maybe that is different than the sensor of the gauge, i mean their are 2 sensors: one for the ECU (which is supposed to be not working) and the other is just for the gauge on the dash...i think this is what Tom means.

MMamdouh

patrick3002 · Post by **patrick3002** » Fri Jan 27, 2006 2:35 am

Could anyone give me some tips on where these sensors and vacuume lines might be located? I would greatly appreciate it... Also, where might i find replacement sensors: CTS, Vacuum Lines, IAC, MAP sesors? Local auto shop?

Thanks alot.

MMamdouh · Post by **MMamdouh** » Fri Jan 27, 2006 5:51 pm

cam position sensor: on engine head between the 2 cma gears
Crank position sensor: on the top left of the big gear behind the crank pully
vacuum lines: between intake and firewall
Replacments: www.gm-carparts.com www.360dynamics.ca www.ebay.com

MMamdouh

norman · Post by **norman** » Sat Jan 28, 2006 4:03 pm

moin,

fuelpumprelay?

tschau norman