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Chevrolet Blazer Engine and Performance Problems

142 messages,  Last post on Nov 11, 2009 at 9:09 PM

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#21 of 142 Re: Loss of throttle at 90 mph / 150 km [repairdog] by softtail Sep 11, 2006 (3:43 pm)
Replying to: repairdog (Sep 11, 2006 1:39 am) Thanks for your reply. Did'nt know of this information. I'll leave it at the factory specs. Much appreciated. Just seems this truck could ride along at a high rate no problem. Very comfortable to cruise in.   s
#22 of 142 HELP - My Jimmy won't go over 20MPH! by mitch16 Aug 15, 2007 (8:52 am)
I have a 95 Jimmy with the 4.3 liter Vortec 4x4. I have cleaned out the Throttlebody, as it was all gummed up and would stay stuck in the "wide-open" position. However, it still won't go over 20 mph, any ideas?
#24 of 142 98 Blazer surges while driving by chevylovers Aug 14, 2007 (7:24 am)
While driving sometimes the Blazer will start an almost jerky surge and the rpms will usually jump up and down within about 750 rpms. We are not sure what could be causing this. It's like a pulse type jump. It may be at 1500 rpms then drop to around 1000 then up to 1500 and down to 1000. Any ideas?
#25 of 142 surge while driving by jhill133 Aug 16, 2007 (11:55 am)
My 98 jimmy had the same problem and after multiple trys at nothing. I replaced the distribitor and problem solved.
#26 of 142 Blazer - Jimmy Mass Airflow Sensor by thesweetrosslg Jun 17, 2007 (7:48 am)
#27 of 142 Mas Airflow sensor by thesweetrosslg Jun 16, 2007 (11:24 am)
can you clean the mas air flow sensor or dose it have to be replaced when bad ? thank you Replies to this message: repairdog (Jun 16, 2007 1:10 pm) thesweetrosslg (Jun 17, 2007 7:48 am)
#28 of 142 Re: Mas Airflow sensor [thesweetrosslg] by repairdog Jun 16, 2007 (1:10 pm)
Replying to: thesweetrosslg (Jun 16, 2007 11:24 am) If the wires or actual resistor embedded are damaged it has to be replaced but if only dirty take it out and spray off with MAF spray, electronic cleaner, or even brake cleaner but NOT carb that leaves residue. Keep a clean air filter in there too. Many MAFs get oil from an over oiled K&N filter. Replies to this message: thesweetrosslg (Jun 17, 2007 7:48 am)
#29 of 142 Re: Mas Airflow sensor [repairdog] by thesweetrosslg Jun 17, 2007 (7:48 am)
Replying to: repairdog (Jun 16, 2007 1:10 pm) Ok thank you i am thinking that is is a problem that is acuring becouse it was brining up a code and they checked it when they replaced the sylnoid and tranmission computer i still get a little hesitation so i am going to try and replace or clean this out first and if it dosnt help then take the car back to the shop on monday and get looked at agen
#30 of 142 Blazer Overheating Problems by sbalsano Aug 04, 2007 (12:46 pm)

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